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Heterocyclic building blocks

LD 490

Also known as Coumarin 6H, Exciton LD 490, 1H,5H,11H-[1]Benzopyrano[6,7,8-ij]quinolizin-11-one, 2,3,6,7-tetrahydro-

CAS 58336-35-9Formula C15H15NO2Molar mass 241.29 g/molEC 261-213-4
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LD 490 chemical structure, C15H15NO2, CAS 58336-35-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
58336-35-9
Formula
C15H15NO2
Molar mass
241.29 g/mol
EC number
261-213-4
HS code
293499
Category
Heterocyclic building blocks

What is LD 490?

Plain description, key identifiers and synonyms

LD 490 is a chemical substance with the molecular formula C15H15NO2 and a molar mass of 241.29 g/mol. Its CAS registry number is 58336-35-9. The IUPAC name is 3-oxa-13-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1,5,7,9(17)-tetraen-4-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-oxa-13-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1,5,7,9(17)-tetraen-4-one
CAS number
58336-35-9 CAS number cross-checked
EC number
261-213-4
Molecular formula
C15H15NO2
UNII
724GLF8NMA
MDL number
MFCD00227485
InChIKey
MZSOXGPKUOAXNY-UHFFFAOYSA-N
InChI
InChI=1S/C15H15NO2/c17-13-6-5-11-9-10-3-1-7-16-8-2-4-12(14(10)16)15(11)18-13/h5-6,9H,1-4,7-8H2
SMILES (canonical and isomeric)
C1CC2=C3C(=C4C(=C2)C=CC(=O)O4)CCCN3C1

Synonyms

  • Coumarin 6H
  • Exciton LD 490
  • 1H,5H,11H-[1]Benzopyrano[6,7,8-ij]quinolizin-11-one, 2,3,6,7-tetrahydro-
  • 1H,5H,11H-(1)Benzopyrano(6,7,8-ij)quinolizin-11-one, 2,3,6,7-tetrahydro-
  • 2,3,6,7-Tetrahydro-1H,5H,11H-(1)benzopyrano(6,7,8-ij)-quinolizin-11-one
  • 2,3,6,7-tetrahydro-1H,5H,11H-[1]benzopyrano[6,7,8-ij]quinolizin-11-one
  • 2,3,6,7-Tetrahydro-1H,5H,11H-(1)benzopyrano(6,7,8-ij)quinolizin-11-one
  • 2,3,5,61 H,4HTetrahydroquinolizinocoumarin
  • 1H,5H,11H(1)Benzopyrano(6,7,8ij)quinolizin11one, 2,3,6,7tetrahydro
  • 2,3,6,7Tetrahydro1H,5H,11H(1)benzopyrano(6,7,8ij)quinolizin11one
  • 2,3,5,6-1H,4H-Tetrahydroquinolizino[9,9a,1-gh]coumarin
  • 2,3,6,7-tetrahydro-1H,5H,11H-pyrano[2,3-f]pyrido[3,2,1-ij]quinolin-11-one
  • 2,3,6,7-Tetrahydro-1H-pyrano[2,3-f]pyrido[3,2,1-ij]quinolin-11(5H)-one
  • 3-oxa-13-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1,5,7,9(17)-tetraen-4-one
  • C 6H
  • 11(5H)-one
  • Coumarin 6H, Dye content 99 %
  • Coumarin 6H Solution in Acetonitrile, 100ug/mL
  • Coumarin 6H Solution in Acetonitrile, 1000ug/mL
  • 2,3,6,7-Tetrahydro-1H-pyrano[2,3-f]pyrido[3,2,1-ij]quinolin-
  • 2,3,6,7-Tetrahydro-1H,5H,11H-(1)benzopyrano[6,7,8,-ij]-quinolizin-11-one
  • 2,3,6,7-Tetrahydro-1H-pyrano[2,3-f]pyrido[3,2,1-ij]quinolin-11(5H)-one, 2,3,5,6-1H,4H-Tetrahydroquinolizino[9,9a,1-gh]coumarin

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
241.29 g/molcalc.
Exact mass
241.1103 Dacalc.
LogP (octanol/water)
2.49calc.
Topological polar surface area
33.45 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
18calc.
Rings
4calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.4calc.
Formal charge
0calc.
Stereocentres
0calc.
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=c1ccc2cc3c4c(c2o1)CCCN4CCC3

O=c1ccc2cc3c4c(c2o1)CCCN4CCC3

4 rings, 18 atoms. This chemical is the scaffold itself.

35 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.

LD 490 suppliers

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LD 490 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

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Inactive in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code LD 490 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 LD 490 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about LD 490, based on the data on this page

What is LD 490?

LD 490 is a chemical substance with the molecular formula C15H15NO2 and a molar mass of 241.29 g/mol. Its CAS registry number is 58336-35-9. The IUPAC name is 3-oxa-13-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1,5,7,9(17)-tetraen-4-one.

What is the CAS number of LD 490?

The CAS registry number of LD 490 is 58336-35-9.

What is the molecular formula and weight of LD 490?

The molecular formula of LD 490 is C15H15NO2 and its molar mass is 241.29 g/mol.

What is LD 490 used for?

Known uses and roles of LD 490 include building blocks in research and laboratory and screening compounds in research and laboratory.

Is LD 490 hazardous?

No GHS hazard classification for LD 490 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 LD 490?

LD 490 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 LD 490?

Post a free request on CompoundList and suppliers of LD 490 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of LD 490?

Suppliers quote LD 490 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 LD 490

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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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