NPASS Compound

Natural Product: NPC254823

Natural Product ID	NPC254823
Common Name ? The InCHIKey will be temporarily assigned as the "Common Name" if no IUPAC name or alternative short name is available.	Chloramultiol C
IUPAC Name	n.a.
Synonyms	Chloramultiol C
Synthetic Gene Cluster	n.a.
ChEMBL Identifier	CHEMBL1097988
PubChem CID	46834848
Chemical Classification	CHEMONTID:0000000 [Organic compounds] [CHEMONTID:0000012] Lipids and lipid-like molecules [CHEMONTID:0000259] Prenol lipids [CHEMONTID:0001553] Triterpenoids

The Chemical Classification was calculated by Classyfire, a software for chemical taxonomy calculation. Reference: DOI:10.1186/s13321-016-0174-y.

Chemical Representations

RDKit 3D 89 97 0 0 0 0 0 0 0 0999 V2000 7.8744 -2.3200 3.0435 C 0 0 0 0 0 0 0 0 0 0 0 0 6.8284 -2.0389 2.0022 C 0 0 0 0 0 0 0 0 0 0 0 0 5.5577 -1.8827 2.3199 C 0 0 0 0 0 0 0 0 0 0 0 0 5.1866 -1.9935 3.7493 C 0 0 0 0 0 0 0 0 0 0 0 0 4.5628 -1.6063 1.2584 C 0 0 0 0 0 0 0 0 0 0 0 0 4.9264 -1.5206 0.0592 O 0 0 0 0 0 0 0 0 0 0 0 0 3.2336 -1.4372 1.5415 O 0 0 0 0 0 0 0 0 0 0 0 0 2.1652 -1.1626 0.7002 C 0 0 0 0 0 0 0 0 0 0 0 0 2.1994 0.1960 0.0280 C 0 0 2 0 0 0 0 0 0 0 0 0 2.0198 1.2574 1.0699 C 0 0 1 0 0 0 0 0 0 0 0 0 2.2570 2.6735 0.8941 C 0 0 0 0 0 0 0 0 0 0 0 0 0.8913 2.1964 0.5750 C 0 0 1 0 0 0 0 0 0 0 0 0 0.6381 1.8092 -0.8710 C 0 0 1 0 0 0 0 0 0 0 0 0 1.6540 2.5526 -1.6884 C 0 0 0 0 0 0 0 0 0 0 0 0 0.9038 0.3381 -0.6971 C 0 0 1 0 0 0 0 0 0 0 0 0 0.6691 -0.4513 -1.9190 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.2857 0.3207 -2.7254 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.3217 0.6447 -3.9960 C 0 0 0 0 0 0 0 0 0 0 0 0 0.6646 0.2967 -5.0488 C 0 0 0 0 0 0 0 0 0 0 0 0 1.7220 -0.4467 -4.6225 O 0 0 0 0 0 0 0 0 0 0 0 0 -1.5465 1.4347 -4.2567 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.8320 1.8767 -5.3900 O 0 0 0 0 0 0 0 0 0 0 0 0 -2.2390 1.5597 -3.0665 O 0 0 0 0 0 0 0 0 0 0 0 0 -1.4407 0.9347 -2.0732 C 0 0 2 0 0 0 0 0 0 0 0 0 -0.7319 2.1294 -1.3887 C 0 0 1 0 0 0 0 0 0 0 0 0 -1.6074 2.9790 -0.5651 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.8591 2.3856 -0.0335 C 0 0 2 0 0 0 0 0 0 0 0 0 -3.0699 2.6412 1.4399 C 0 0 1 0 0 0 0 0 0 0 0 0 -4.5307 2.5705 1.8663 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.6715 1.3528 2.0091 C 0 0 1 0 0 0 0 0 0 0 0 0 -3.6622 0.3438 0.8983 C 0 0 1 0 0 0 0 0 0 0 0 0 -5.0843 0.0321 0.4301 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.8524 0.9537 -0.1319 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.2238 0.2604 -1.0926 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.4863 -1.1836 -1.0381 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.6307 -2.0476 -2.0070 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.5405 -1.7339 -3.4287 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.0248 -3.2991 -1.3236 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.2458 -4.3749 -1.9574 O 0 0 0 0 0 0 0 0 0 0 0 0 -3.0954 -3.0675 0.0387 O 0 0 0 0 0 0 0 0 0 0 0 0 -2.5093 -1.8317 0.2975 C 0 0 2 0 0 0 0 0 0 0 0 0 -3.0948 -0.9824 1.3500 C 0 0 2 0 0 0 0 0 0 0 0 0 -4.1392 -1.6634 2.0134 O 0 0 0 0 0 0 0 0 0 0 0 0 -1.1675 -2.1888 0.6685 O 0 0 0 0 0 0 0 0 0 0 0 0 -1.2569 -3.0209 1.7756 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.9775 2.9735 -0.6680 O 0 0 0 0 0 0 0 0 0 0 0 0 3.3218 0.2687 -0.7086 O 0 0 0 0 0 0 0 0 0 0 0 0 8.2946 -3.3164 2.8064 H 0 0 0 0 0 0 0 0 0 0 0 0 7.4810 -2.2256 4.0575 H 0 0 0 0 0 0 0 0 0 0 0 0 8.7157 -1.5984 2.9524 H 0 0 0 0 0 0 0 0 0 0 0 0 7.1185 -1.9633 0.9787 H 0 0 0 0 0 0 0 0 0 0 0 0 5.3128 -3.0169 4.1543 H 0 0 0 0 0 0 0 0 0 0 0 0 4.1018 -1.6879 3.8202 H 0 0 0 0 0 0 0 0 0 0 0 0 5.7261 -1.2315 4.3612 H 0 0 0 0 0 0 0 0 0 0 0 0 1.2483 -1.1639 1.3763 H 0 0 0 0 0 0 0 0 0 0 0 0 2.0053 -1.9755 -0.0533 H 0 0 0 0 0 0 0 0 0 0 0 0 1.9839 0.8915 2.1216 H 0 0 0 0 0 0 0 0 0 0 0 0 2.3349 3.3084 1.7999 H 0 0 0 0 0 0 0 0 0 0 0 0 2.9536 2.9760 0.1159 H 0 0 0 0 0 0 0 0 0 0 0 0 0.0709 2.1871 1.3145 H 0 0 0 0 0 0 0 0 0 0 0 0 1.6702 3.6106 -1.2826 H 0 0 0 0 0 0 0 0 0 0 0 0 2.5979 2.1136 -1.8870 H 0 0 0 0 0 0 0 0 0 0 0 0 1.1788 2.7234 -2.7066 H 0 0 0 0 0 0 0 0 0 0 0 0 0.1509 0.0181 0.0871 H 0 0 0 0 0 0 0 0 0 0 0 0 0.1714 -1.4167 -1.6471 H 0 0 0 0 0 0 0 0 0 0 0 0 1.6119 -0.7124 -2.3792 H 0 0 0 0 0 0 0 0 0 0 0 0 0.1588 -0.2794 -5.8707 H 0 0 0 0 0 0 0 0 0 0 0 0 1.0589 1.2211 -5.5513 H 0 0 0 0 0 0 0 0 0 0 0 0 1.6874 -1.4054 -4.8392 H 0 0 0 0 0 0 0 0 0 0 0 0 -0.5198 2.7935 -2.3039 H 0 0 0 0 0 0 0 0 0 0 0 0 -1.0751 3.4304 0.3263 H 0 0 0 0 0 0 0 0 0 0 0 0 -1.9343 3.9410 -1.0897 H 0 0 0 0 0 0 0 0 0 0 0 0 -2.3513 3.2069 2.0282 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.2829 2.6575 1.0778 H 0 0 0 0 0 0 0 0 0 0 0 0 -4.7998 3.1392 2.7835 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.3447 1.0401 3.0214 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.1838 -1.0326 0.1295 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.7387 0.1428 1.3379 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.3974 0.6481 -0.4119 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.1707 -2.5529 -3.9139 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.1244 -0.8715 -3.7670 H 0 0 0 0 0 0 0 0 0 0 0 0 -1.5832 -1.9279 -3.9236 H 0 0 0 0 0 0 0 0 0 0 0 0 -2.3378 -0.7766 2.1564 H 0 0 0 0 0 0 0 0 0 0 0 0 -4.4374 -2.4445 1.5006 H 0 0 0 0 0 0 0 0 0 0 0 0 -0.2323 -3.3399 2.1193 H 0 0 0 0 0 0 0 0 0 0 0 0 -1.7726 -3.9778 1.5435 H 0 0 0 0 0 0 0 0 0 0 0 0 -1.7617 -2.6044 2.6475 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.6648 3.7860 -1.1276 H 0 0 0 0 0 0 0 0 0 0 0 0 3.9304 0.9582 -0.3278 H 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 2 0 3 4 1 0 3 5 1 0 5 6 2 0 5 7 1 0 7 8 1 0 8 9 1 0 9 10 1 0 10 11 1 0 11 12 1 0 12 13 1 0 13 14 1 6 13 15 1 0 15 16 1 0 16 17 1 0 17 18 2 0 18 19 1 0 19 20 1 0 18 21 1 0 21 22 2 0 21 23 1 0 24 23 1 6 24 25 1 0 25 26 1 0 26 27 1 0 27 28 1 0 28 29 1 0 29 30 1 0 30 31 1 0 31 32 1 6 31 33 1 0 33 34 2 0 34 35 1 0 35 36 2 0 36 37 1 0 36 38 1 0 38 39 2 0 38 40 1 0 40 41 1 0 41 42 1 0 42 43 1 0 41 44 1 1 44 45 1 0 27 46 1 6 9 47 1 6 15 9 1 0 24 17 1 0 33 27 1 0 41 35 1 0 12 10 1 0 25 13 1 0 30 28 1 0 42 31 1 0 34 24 1 0 1 48 1 0 1 49 1 0 1 50 1 0 2 51 1 0 4 52 1 0 4 53 1 0 4 54 1 0 8 55 1 0 8 56 1 0 10 57 1 1 11 58 1 0 11 59 1 0 12 60 1 1 14 61 1 0 14 62 1 0 14 63 1 0 15 64 1 1 16 65 1 0 16 66 1 0 19 67 1 0 19 68 1 0 20 69 1 0 25 70 1 6 26 71 1 0 26 72 1 0 28 73 1 1 29 74 1 0 29 75 1 0 30 76 1 1 32 77 1 0 32 78 1 0 32 79 1 0 37 80 1 0 37 81 1 0 37 82 1 0 42 83 1 1 43 84 1 0 45 85 1 0 45 86 1 0 45 87 1 0 46 88 1 0 47 89 1 0 M END

Standard InCHIKey	QEKDFQHMYVWLIF-HYZASWLWSA-N
Standard InCHI	InChI=1S/C36H42O11/c1-7-14(2)27(38)45-13-34(43)21-8-18(21)31(4)22(34)10-17-16(12-37)29(40)46-35(17)23(31)11-33(42)20-9-19(20)32(5)26(33)25(35)24-15(3)28(39)47-36(24,44-6)30(32)41/h7,18-23,30,37,41-43H,8-13H2,1-6H3/b14-7+/t18-,19-,20+,21+,22-,23+,30-,31+,32+,33+,34+,35+,36+/m1/s1
SMILES	C/C=C(C)/C(=O)OC[C@@]1([C@H]2C[C@H]2[C@@]2(C)[C@H]1CC1=C(CO)C(=O)O[C@@]31[C@H]2C[C@@]1([C@H]2C[C@H]2[C@@]2(C)C1=C3C1=C(C)C(=O)O[C@@]1([C@@H]2O)OC)O)O

Calculated Properties

Physi-Chem Properties

Molecular Weight:	650.27	Volume:	632.441 ? Van der Waals volume.
Dense:	1.028	LogP:	1.224 ? The logarithm of the n-octanol/water distribution coefficients.
logD7.4:	1.697 ? The logarithm of the n-octanol/water distribution coefficient at pH=7.4.	LogS:	-3.884 ? The logarithm of aqueous solubility value.
Rotatable Bonds:	6.0	Rigid Bonds:	39.0
TPSA:	169.05 ? Topological Polar Surface Area.	H-Bond Acceptor:	11.0
H-Bond Donor:	4.0	Rings:	9.0
Heavy Atoms:	11.0

MedChem Properties

QED Drug-Likeness Score:	0.194	GASA:	1.0 ? GASA represents the probability of being difficult to synthesize, ranging from 0 to 1.
Synthetic Accessibility Score:	6.941	Fsp³:	0.694
MCE-18:	220.557 ? MCE-18 stands for medicinal chemistry evolution.MCE-18≥45 is considered a suitable value.	Lipinski Rule-of-5:	Accepted
Pfizer Rule:	Rejected	GSK Rule:	Accepted
Golden Triangle Rule:	Accepted	BMS Rule:	0
Chelating Alert:	0	PAINS Alert:	0
Colloidal aggregators:	0.431	Fluc inhibitor:	0.006 ? The fluc inhibitor value is the probability of being fLuc inhibitors, within the range of 0 to 1.
Blue fluorescence:	0.32 ? The blue fluorescence value is the probability of being blue fluorescence, within the range of 0 to 1	Green fluorescence:	0.0 ? The green fluorescence value is the probability of being green fluorescence, within the range of 0 to 1
Reactive compounds:	0.219	Promiscuous compounds:	0.524

ADMET Properties (ADMETlab3.0)

ADMET: Absorption

Caco-2 Permeability:	-5.316	MDCK Permeability:	-4.907
Pgp-inhibitor:	0.0	Pgp-substrate:	0.43
PAMPA:	1.0 ? The experimental data for Peff was logarithmically transformed (logPeff). Molecules with log Peff values below 2.0 were classified as low-permeability (Category 0), while those with log Peff values exceeding 2.5 were classified as high-permeability (Category 1).	Human Intestinal Absorption (HIA):	0.097
20% Bioavailability (F20%):	0.956	30% Bioavailability (F30%):	0.941
50% Bioavailability (F50%):	0.991

ADMET: Distribution

Blood-Brain-Barrier Penetration (BBB):	0.361	MRP1:	0.982
Plasma Protein Binding (PPB):	72.517%	Volume Distribution (VD):	-0.159
Fu:	26.465% ? The fraction unbound in plasms.	OATP1B1 inhibitor:	0.93
OATP1B3 inhibitor:	0.697	BCRP inhibitor:	0.0
BSEP inhibitor:	0.059

ADMET: Metabolism

CYP1A2-inhibitor:	0.001	CYP1A2-substrate:	0.006
CYP2C19-inhibitor:	0.002	CYP2C19-substrate:	0.001
CYP2C9-inhibitor:	0.0	CYP2C9-substrate:	0.0
CYP2D6-inhibitor:	0.0	CYP2D6-substrate:	0.071
CYP3A4-inhibitor:	0.871	CYP3A4-substrate:	0.732
CYP2B6-substrate:	0.0	CYP2C8-inhibitor:	0.997
HLM stability:	0.86 ? Human liver microsomal (HLM) stability. Category 0: stable+ (HLM > 30 min); Category 1: unstable- (HLM ≤ 30 min). The output value is the probability of human liver microsomal instability, where a value closer to 1 indicates a higher likelihood of instability.

ADMET: Excretion

Clearance (CL):

2.835

Half-life (T1/2):

2.097

ADMET: Toxicity

hERG Blockers:	0.004	hERG Blockers (10um):	0.024
Human Hepatotoxicity (H-HT):	0.903	Drug-induced Liver Injury (DILI):	0.66
AMES Toxicity:	0.925	Rat Oral Acute Toxicity:	0.331
Maximum Recommended Daily Dose:	0.898	Skin Sensitization:	1.0
Carcinogencity:	0.986	Eye Corrosion:	0.0
Eye Irritation:	0.071	Respiratory Toxicity:	0.138
Drug-induced Neurotoxicity:	0.248	Ototoxicity:	0.716
Hematotoxicity:	0.868	Drug-induced Nephrotoxicity:	0.999
Genotoxicity:	0.999	RPMI-8226 Immunitoxicity:	0.371
A549 Cytotoxicity:	0.282	Hek293 Cytotoxicity:	0.556
BCF:	0.549 ? Bioconcentration factors are used for considering secondary poisoning potential and assessing risks to human health via the food chain. The unit is -log10[(mg/L)/(1000*MW)].	IGC50:	3.568 ? 48 hour Tetrahymena pyriformis IGC50. The unit of IGC50 is -log10[(mg/L)/(1000*MW)].
LC50DM:	5.598 ? 48 hour Daphnia magna LC50. The unit of LC50DM is -log10[(mg/L)/(1000*MW)].	LC50FM:	4.68 ? 96 hour fathead minnow LC50. The unit of LC50FM is -log10[(mg/L)/(1000*MW)].

Species Source

Organism ID	Organism Name	Taxonomy Level	Family	SuperKingdom	Isolation Part	Collection Location	Collection Time	Reference
NPO8670	Chloranthus multistachys	Species	Chloranthaceae	Eukaryota	n.a.	n.a.	n.a.	PMID[20392109]
NPO8670	Chloranthus multistachys	Species	Chloranthaceae	Eukaryota	n.a.	n.a.	n.a.	Database[COCONUT]
NPO8670	Chloranthus multistachys	Species	Chloranthaceae	Eukaryota	n.a.	n.a.	n.a.	Database[UNPD]

Note for Reference:
In addition to directly collecting NP source organism data from primary literature (where reference will provided as NCBI PMID or DOI links), NPASS also integrated them from below databases:
☉ UNPD: Universal Natural Products Database [PMID: 23638153].
☉ StreptomeDB: a database of streptomycetes natural products [PMID: 33051671].
☉ TM-MC: a database of medicinal materials and chemical compounds in Northeast Asian traditional medicine [PMID: 26156871].
☉ TCM@Taiwan: a Traditional Chinese Medicine database [PMID: 21253603].
☉ TCMID: a Traditional Chinese Medicine database [PMID: 29106634].
☉ TCMSP: The traditional Chinese medicine systems pharmacology database and analysis platform [PMID: 24735618].
☉ HerDing: a herb recommendation system to treat diseases using genes and chemicals [PMID: 26980517].
☉ MetaboLights: a metabolomics database [PMID: 27010336].
☉ FooDB: a database of constituents, chemistry and biology of food species [www.foodb.ca].

NP Quantity Composition/Concentration

Organism ID	Organism Name	Organism Material Preparation	Organism Part	NP Quantity (Standard)	NP Quantity (Minimum)	NP Quantity (Maximum)	Quantity Unit	Reference

Note for Reference:
In addition to directly collecting NP quantitative data from primary literature (where reference will provided as NCBI PMID or DOI links), NPASS also integrated NP quantitative records for specific NP domains (e.g., NPS from foods or herbs) from domain-specific databases. These databases include:
☉ DUKE: Dr. Duke's Phytochemical and Ethnobotanical Databases.
☉ PHENOL EXPLORER: is the first comprehensive database on polyphenol content in foods [PMID: 24103452], its homepage can be accessed at here.
☉ FooDB: a database of constituents, chemistry and biology of food species [www.foodb.ca].

Biological Activity

Activity Type	# Activity
IC50	5

Activity Type	# Activity
Cell line	5

Molecular-level activity

Target ID	Target Type	Target Name	Target Organism	Activity Type	Activity Relation	Value	Unit	Reference

In vitro activity

Target ID	Target Type	Target Name	Target Organism	Activity Type	Activity Relation	Value	Unit	Reference
NPT81	Cell line	A549	Homo sapiens	IC50	>	10000.0	nM	PMID[15568791]
NPT116	Cell line	HL-60	Homo sapiens	IC50	>	10000.0	nM	PMID[19101158]
NPT461	Cell line	PANC-1	Homo sapiens	IC50	>	10000.0	nM	PMID[25593097]
NPT659	Cell line	SMMC-7721	Homo sapiens	IC50	>	10000.0	nM	PMID[19618898]
NPT134	Cell line	SK-BR-3	Homo sapiens	IC50	>	10000.0	nM	PMID[18553924]

In vivo activity

Target ID	Target Type	Target Name	Target Organism	Activity Type	Activity Relation	Value	Unit	Reference

Experimental ADME

Experiment Model	Experiment Tissue	ADME Type	ADME Relation	ADME Value	ADME Unit	Reference

Experimental Toxicity

Quantitative toxicity

Experiment Model	Experiment Organism	Toxicity Type	Toxicity Relation	Toxicity Value	Toxicity Unit	Reference

Common Abbreviations:
LC: Lethal Concentration; LD: Lethal Dose; LT:Lethal Time; NOAEL: No-observed-adverse-effect Level; BMDL: Benchmark Dose Lower Confidence Limit; BMD: Benchmark Dose; BMC:Benchmark Concentration; LOAEL: Lowest Observed Adverse Effect Level; RfD:Reference Dose; RfC:Reference Concentration; MRL: Minimal Risk Level; MEG: Maximum Exposure Guideline; PAC: Protective Action Criteria

Categorical toxicity labels

Hepatotoxicity	Carcinogenicity	Mutagenicity	Cardiotoxicity	Respiratory Toxicity	Eye Irritation	Endocrine Disruption

Note for Reference:
In addition to directly collecting NP quantitative data from primary literature (where reference will provided as NCBI PMID or DOI links), NPASS also integrated NP toxicity records from domain-specific databases. These databases include:
☉ ToxValDB: a curated database that compiles quantitative toxicity values for chemicals from diverse public sources to support toxicological research and risk assessment.
☉ TOXRIC: a comprehensive, free-to-access, online database providing toxicological/feature data. The toxicity labels are retrieved from this database. [PMID: 36400569]

Chemically structural similarity

Similar Active Natural Products in NPASS

Top-200 similar NPs were calculated against the active-NP-set (includes approximately 50,000 NPs with experimentally-derived bioactivity available in NPASS)

Similarity is measured using the Tanimoto coefficient (Tc) , which compares the binary fingerprints of two molecules. Tc is calculated as the intersection divided by the union of '1' bits in the fingerprints, ranging from 0 to 1, with 1 indicating highest similarity.

● The left chart: Distribution of similarity level between NPC254823 and all remaining natural products in the NPASS database.
● The right table: Most similar natural products (Tc>=0.5 or Top200).

range	Tanimoto Coefficient
0-0.1	20582
0.1-0.2	28762
0.2-0.3	456
0.3-0.4	25
0.4-0.5	17
0.5-0.6	10
0.6-0.7	2
0.7-0.8	0
0.8-0.85	0
0.85-0.9	0
0.9-0.95	0
0.95-1	0

Similarity Score	Similarity Level	Natural Product ID
0.75	Intermediate Similarity	NPC192334
0.75	Intermediate Similarity	NPC60150
0.7111	Intermediate Similarity	NPC134902
0.6559	Remote Similarity	NPC25887
0.625	Remote Similarity	NPC469381
0.5955	Remote Similarity	NPC27335
0.5918	Remote Similarity	NPC242451
0.5728	Remote Similarity	NPC213697
0.5429	Remote Similarity	NPC327664
0.5429	Remote Similarity	NPC476097
0.5377	Remote Similarity	NPC470426
0.5319	Remote Similarity	NPC84865
0.5283	Remote Similarity	NPC24599
0.5248	Remote Similarity	NPC486811
0.5248	Remote Similarity	NPC220757

Similar Clinical/Approved Drugs

Similarity level is defined by Tanimoto coefficient (Tc) between two molecules.

● The left chart: Distribution of similarity level between NPC254823 and all drugs/candidates.
● The right table: Most similar clinical/approved drugs (Tc>=0.5 or Top200).

range	Tanimoto Coefficient
0-0.1	7264
0.1-0.2	1818
0.2-0.3	68
0.3-0.4	0
0.4-0.5	0
0.5-0.6	0
0.6-0.7	0
0.7-0.8	0
0.8-0.85	0
0.85-0.9	0
0.9-0.95	0
0.95-1	0

Similarity Score	Similarity Level	Drug ID	Developmental Stage
		NPD

Bioactivity similarity

Similar Natural Products in NPASS

Similarity level is defined by Bioactivity similarity was calculated based on bioactivity descriptors of compounds. The bioactivity descriptors were calculated by a recently developed AI algorithm Chemical Checker (CC) [Nature Biotechnology, 38:1087–1096, 2020; Nature Communications, 12:3932, 2021], which evaluated bioactivity similarities at five levels:
☉ A: chemistry similarity;
☉ B: biological targets similarity;
☉ C: networks similarity;
☉ D: cell-based bioactivity similarity;
☉ E: similarity based on clinical data.
Those 5 categories of CC bioactivity descriptors were calculated and then subjected to manifold projection using UMAP algorithm, to project all NPs on a 2-Dimensional space. The current NP was highlighted with a small circle in the 2-D map. Below figures: left-to-right, A-to-E.

A: chemistry similarity

B: biological targets similarity

C: networks similarity

D: cell-based bioactivity similarity

E: similarity based on clinical data