ChemicalBook >> CAS DataBase List >>(-)-[3R,4s]-chromanol 293b

(-)-[3R,4s]-chromanol 293b

CAS No.
163163-24-4
Chemical Name:
(-)-[3R,4s]-chromanol 293b
Synonyms
(-)-[3R;(-)-Chromanol 293B;4S]-Chromanol 293B;(-)-[3R,4S]-Chromano;(?)-[3R,4S]-Chromanol 293B;(-)-[3R,4s]-chromanol 293b;Chromanol 293B [3R,4S]-(-)-;( ) Chromanol 293B,()Chromanol 293B;N-((3R,4S)-6-Cyano-3-hydroxy-2,2-dimethylchroman-4-yl)-N-methylethanesulfonamide;N-[(3R,4S)-6-cyano-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-4-yl]-N-methylethanesulfonamide
CBNumber:
CB0677882
Molecular Formula:
C15H20N2O4S
Molecular Weight:
324.4
MDL Number:
MFCD06798368
MOL File:
163163-24-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:48:27

(-)-[3R,4s]-chromanol 293b Properties

Melting point 192 °C
Boiling point 474.1±55.0 °C(Predicted)
Density 1.33±0.1 g/cm3(Predicted)
storage temp. −20°C
solubility DMSO: 18 mg/mL
form solid
pka 12.96±0.60(Predicted)
color white

SAFETY

Risk and Safety Statements

Hazard Codes  Xn
Risk Statements  20/21/22
Safety Statements  36/37-7/9
WGK Germany  3

(-)-[3R,4s]-chromanol 293b price More Price(8)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 254402 (-)-[3R,4S]-Chromanol 293B Asreported 163163-24-4 10mg $480 2026-06-03 Buy
Usbiological 254402 (-)-[3R,4S]-Chromanol 293B Asreported 163163-24-4 50mg $1409 2026-06-03 Buy
ChemScene CS-0032830 (-)-Chromanol 293B 163163-24-4 10mg $652 2026-06-04 Buy
ApexBio Technology B6753 (-)-[3R,4S]-Chromanol 293B 163163-24-4 10mg $515 2026-05-06 Buy
ApexBio Technology B6753 (-)-[3R,4S]-Chromanol 293B 163163-24-4 50mg $1708 2026-05-06 Buy
Product number Packaging Price Buy
254402 10mg $480 Buy
254402 50mg $1409 Buy
CS-0032830 10mg $652 Buy
B6753 10mg $515 Buy
B6753 50mg $1708 Buy

(-)-[3R,4s]-chromanol 293b Chemical Properties,Uses,Production

Uses

(-)-Chromanol 293B is a potent and selective inhibitor of the slow component of delayed rectifier K+ current (IKs). (-)-Chromanol 293B can be used for the research of antiarrhythmic[1].

Definition

ChEBI: Chromanol 293B is a 1-benzopyran.

Biological Activity

Enantiomer that selectively inhibits the slow component of delayed rectifier K + current (I Ks ). Block is use-dependent and 7-fold more potent than the (+)-(3S,4R) enantiomer (IC 50 values are 1.36 and 9.6 μ M respectively). Has negligible inhibitory action at hERG channels (IC 50 > 30 μ M).

storage

Room temperature

References

[1] Yang IC, et al. Stereoselective interactions of the enantiomers of chromanol 293B with human voltage-gated potassium channels. J Pharmacol Exp Ther. 2000;294(3):955-962. PMID:10945846

(-)-[3R,4s]-chromanol 293b Preparation Products And Raw materials

Raw materials

Preparation Products

(-)-[3R,4s]-chromanol 293b Suppliers

Global( 28)Suppliers
Supplier Tel Email Country ProdList Advantage
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
EMMX Biotechnology LLC 888-539-0666 info@emmx.com United States 8435 60
BOC Sciences 16314854226; +8616314854226 inquiry@bocsci.com United States 19852 58
TargetMol Chemicals Inc. +1-781-999-5354; +1-00000000000 marketing@targetmol.com United States 32431 58
Career Henan Chemica Co +86-0371-86658258 +86-13203830695 laboratory@coreychem.com China 30203 58
MedBioPharmaceutical Technology Inc 021-69568360 18916172912 order@med-bio.cn China 8137 58
Shanghai Universal Biotech Co.,Ltd 15921930842 15921930842 yh-wang@univ-bio.com China 25030 58
Nantong QuanYi Biotechnology Co., Ltd 0513-66337626 18051384581 sales@chemhifuture.com China 5987 58
DAYANG CHEM (HANGZHOU) CO.,LTD +86-88938639 +86-17705817739 info@dycnchem.com China 53799 58
Aladdin Scientific tp@aladdinsci.com United States 50089 58
N-[(3R,4S)-6-CYANO-3,4-DIHYDRO-3-HYDROXY-2,2-DIMETHYL-2H-1-BENZOPYRAN-4-YL]-N-METHYLETHANESULFONAMIDE Chromanol 293B [3R,4S]-(-)- Ethanesulfonamide, N-[(3R,4S)-6-cyano-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-4-yl]-N-methyl- (-)-[3R,4S]-Chromano (-)-[3R 4S]-Chromanol 293B (-)-Chromanol 293B ( ) Chromanol 293B,()Chromanol 293B N-((3R,4S)-6-Cyano-3-hydroxy-2,2-dimethylchroman-4-yl)-N-methylethanesulfonamide N-[(3R,4S)-6-cyano-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-4-yl]-N-methylethanesulfonamide (?)-[3R,4S]-Chromanol 293B (-)-[3R,4s]-chromanol 293b 163163-24-4 Potassium channel