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Heterocyclic building blocks

Levcromakalim

Also known as (-)-Cromakalim, 2H-1-Benzopyran-6-carbonitrile, 3,4-dihydro-3-hydroxy-2,2-dimethyl-4-(2-oxo-1-pyrrolidinyl)-, (3S,trans)-, (3S,4R)-3-hydroxy-2,2-dimethyl-4-(2-oxopyrrolidin-1-yl)chromane-6-carbonitrile

CAS 94535-50-9Formula C16H18N2O3Molar mass 286.33 g/mol
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Levcromakalim chemical structure, C16H18N2O3, CAS 94535-50-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
94535-50-9
Formula
C16H18N2O3
Molar mass
286.33 g/mol
HS code
293499
Category
Heterocyclic building blocks

What is Levcromakalim?

Plain description, key identifiers and synonyms

Levcromakalim is a 1-benzopyran.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3S,4R)-3-hydroxy-2,2-dimethyl-4-(2-oxopyrrolidin-1-yl)-3,4-dihydrochromene-6-carbonitrile
CAS number
94535-50-9 CAS number cross-checked
Molecular formula
C16H18N2O3
UNII
0G4X367WA3, RW7PN4BLDJ
MDL number
MFCD00133201
InChIKey
TVZCRIROJQEVOT-CABCVRRESA-N
InChI
InChI=1S/C16H18N2O3/c1-16(2)15(20)14(18-7-3-4-13(18)19)11-8-10(9-17)5-6-12(11)21-16/h5-6,8,14-15,20H,3-4,7H2,1-2H3/t14-,15+/m1/s1
Canonical SMILES
CC1(C)Oc2ccc(C#N)cc2C(N2CCCC2=O)C1O
Isomeric SMILES
CC1([C@H]([C@@H](C2=C(O1)C=CC(=C2)C#N)N3CCCC3=O)O)C

Synonyms

  • (-)-Cromakalim
  • 2H-1-Benzopyran-6-carbonitrile, 3,4-dihydro-3-hydroxy-2,2-dimethyl-4-(2-oxo-1-pyrrolidinyl)-, (3S,trans)-
  • (3S,4R)-3-hydroxy-2,2-dimethyl-4-(2-oxopyrrolidin-1-yl)chromane-6-carbonitrile
  • levcromakalimum
  • Lemakalim
  • BRL 38227
  • BRL 34915
  • (3S,4R)-3-Hydroxy-2,2-dimethyl-4-(2-oxo-1-pyrrolidinyl)-6-chromancarbonitrile
  • (3S,4R)-3-hydroxy-2,2-dimethyl-4-(2-oxopyrrolidin-1-yl)-3,4-dihydrochromene-6-carbonitrile
  • (+/-)-cromakalim
  • Levcromakelim
  • (3S,4R)-3-hydroxy-2,2-dimethyl-4-(2-oxopyrrolidin-1-yl)-3,4-dihydro-2H-1-benzopyran-6-carbonitrile
  • Cromakalime
  • rel-(3S,4R)-3-Hydroxy-2,2-dimethyl-4-(2-oxopyrrolidin-1-yl)chromane-6-carbonitrile
  • Cromakalimum
  • Cromakalim
  • Cromakalim, trans-Isomer
  • (-)-Cromakalim, BRL 38227
  • Levanex
  • Levcromakalim (+/-)-form
  • Cromakalim, (3S-trans)-Isomer
  • Levcromakalim (USAN/INN)
  • 3-Hydroxy-2,2-dimethyl-4-(2-oxo-pyrrolidin-1-yl)-chroman-6-carbonitrile
  • (3S,4R)-3-Hydroxy-2,2-dimethyl-4-(2-oxo-pyrrolidin-1-yl)-chroman-6-carbonitrile

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
286.33 g/molcalc.
Exact mass
286.1317 Dacalc.
LogP (octanol/water)
1.75calc.
Topological polar surface area
73.56 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
1calc.
Heavy atoms
21calc.
Rings
3calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
2calc.
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=C1CCCN1C1CCOc2ccccc21

O=C1CCCN1C1CCOc2ccccc21

3 rings, 16 atoms.

5 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.

Levcromakalim suppliers

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All 5 suppliers
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Where suppliers are based

5 suppliers in 3 countries

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Levcromakalim 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

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 Levcromakalim 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 Levcromakalim is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Levcromakalim, based on the data on this page

What is Levcromakalim?

Levcromakalim is a 1-benzopyran.

What is the CAS number of Levcromakalim?

The CAS registry number of Levcromakalim is 94535-50-9.

What is the molecular formula and weight of Levcromakalim?

The molecular formula of Levcromakalim is C16H18N2O3 and its molar mass is 286.33 g/mol.

What is Levcromakalim used for?

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

Is Levcromakalim hazardous?

No GHS hazard classification for Levcromakalim 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 Levcromakalim?

Levcromakalim 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 Levcromakalim?

CompoundList lists 5 suppliers of Levcromakalim in China, United Kingdom and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Levcromakalim?

Suppliers quote Levcromakalim 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

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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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