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Heterocyclic compounds

18-Hydroxycamptothecin

Also known as 1H-Pyrano(3',4':6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione, 4-hydroxy-4-(2-hydroxyethyl)-, (S)-, 20-hydroxycamptothecin, (4S)-4-Hydroxy-4-(2-hydroxyethyl)-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione

CAS 116139-46-9Formula C20H16N2O5Molar mass 364.36 g/mol
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18-Hydroxycamptothecin chemical structure, C20H16N2O5, CAS 116139-46-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
116139-46-9
Formula
C20H16N2O5
Molar mass
364.36 g/mol
HS code
293499
Category
Heterocyclic compounds

What is 18-Hydroxycamptothecin?

Plain description, key identifiers and synonyms

18-Hydroxycamptothecin is a chemical substance with the molecular formula C20H16N2O5 and a molar mass of 364.36 g/mol. Its CAS registry number is 116139-46-9. The IUPAC name is (19S)-19-hydroxy-19-(2-hydroxyethyl)-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2,4,6,8,10,15(20)-heptaene-14,18-dione.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(19S)-19-hydroxy-19-(2-hydroxyethyl)-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2,4,6,8,10,15(20)-heptaene-14,18-dione
CAS number
116139-46-9 CAS number cross-checked
Molecular formula
C20H16N2O5
InChIKey
CCBXXGSAGQNXHX-FQEVSTJZSA-N
InChI
InChI=1S/C20H16N2O5/c23-6-5-20(26)14-8-16-17-12(7-11-3-1-2-4-15(11)21-17)9-22(16)18(24)13(14)10-27-19(20)25/h1-4,7-8,23,26H,5-6,9-10H2/t20-/m0/s1
Canonical SMILES
O=C1OCc2c(cc3n(c2=O)Cc2cc4ccccc4nc2-3)C1(O)CCO
Isomeric SMILES
C1C2=CC3=CC=CC=C3N=C2C4=CC5=C(COC(=O)[C@@]5(CCO)O)C(=O)N41

Synonyms

  • 1H-Pyrano(3',4':6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione, 4-hydroxy-4-(2-hydroxyethyl)-, (S)-
  • 20-hydroxycamptothecin
  • (4S)-4-Hydroxy-4-(2-hydroxyethyl)-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione
  • 4-Hydroxy-4-(2-hydroxyethyl)-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
364.36 g/molcalc.
Exact mass
364.1059 Dacalc.
LogP (octanol/water)
1.05calc.
Topological polar surface area
101.7 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
2calc.
Heavy atoms
27calc.
Rings
5calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.25calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1Cc2cc3n(c(=O)c2CO1)Cc1cc2ccccc2nc1-3

O=C1Cc2cc3n(c(=O)c2CO1)Cc1cc2ccccc2nc1-3

5 rings, 23 atoms.

307 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

18-Hydroxycamptothecin suppliers

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18-Hydroxycamptothecin price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 18-Hydroxycamptothecin is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 18-Hydroxycamptothecin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 18-Hydroxycamptothecin, based on the data on this page

What is 18-Hydroxycamptothecin?

18-Hydroxycamptothecin is a chemical substance with the molecular formula C20H16N2O5 and a molar mass of 364.36 g/mol. Its CAS registry number is 116139-46-9.

What is the CAS number of 18-Hydroxycamptothecin?

The CAS registry number of 18-Hydroxycamptothecin is 116139-46-9.

What is the molecular formula and weight of 18-Hydroxycamptothecin?

The molecular formula of 18-Hydroxycamptothecin is C20H16N2O5 and its molar mass is 364.36 g/mol.

Is 18-Hydroxycamptothecin hazardous?

No GHS hazard classification for 18-Hydroxycamptothecin is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of 18-Hydroxycamptothecin?

18-Hydroxycamptothecin is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 18-Hydroxycamptothecin?

Post a free request on CompoundList and suppliers of 18-Hydroxycamptothecin will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 18-Hydroxycamptothecin?

Suppliers quote 18-Hydroxycamptothecin on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 18-Hydroxycamptothecin

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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