1338221-84-3 K6PH0FVE0K 4-Chloro-17-methyl-androsta-1,4-diene-3,17-diol, (3beta,17beta)- UNII-K6PH0FVE0K Androsta-1,4-diene-3,17-diol, 4-chloro-17-methyl-, (3beta,17beta)- Halodrol H-DROL Halo 4-Chloro-17a-methyl-androst-1,4-diene-3b,17b-diol V4-chloro-17a-methyl-androst-1,4-diene-3b, 17b-diol 4-Chloro-17alpha-methyl-androst-1,4-diene-3beta,17beta-diol CAS 1338221-84-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1338221-84-3
Molecular FormulaC20H29ClO2
Molecular Weight336.90 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1338221-84-3 K6PH0FVE0K 4-Chloro-17-methyl-androsta-1,4-diene-3,17-diol, (3beta,17beta)- UNII-K6PH0FVE0K Androsta-1,4-diene-3,17-diol, 4-chloro-17-methyl-, (3beta,17beta)- Halodrol H-DROL Halo 4-Chloro-17a-methyl-androst-1,4-diene-3b,17b-diol V4-chloro-17a-methyl-androst-1,4-diene-3b, 17b-diol 4-Chloro-17alpha-methyl-androst-1,4-diene-3beta,17beta-diol CAS 1338221-84-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 336.90 g/mol gives 1338221-84-3 K6PH0FVE0K 4-Chloro-17-methyl-androsta-1,4-diene-3,17-diol, (3beta,17beta)- UNII-K6PH0FVE0K Androsta-1,4-diene-3,17-diol, 4-chloro-17-methyl-, (3beta,17beta)- Halodrol H-DROL Halo 4-Chloro-17a-methyl-androst-1,4-diene-3b,17b-diol V4-chloro-17a-methyl-androst-1,4-diene-3b, 17b-diol 4-Chloro-17alpha-methyl-androst-1,4-diene-3beta,17beta-diol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1338221-84-3 K6PH0FVE0K 4-Chloro-17-methyl-androsta-1,4-diene-3,17-diol, (3beta,17beta)- UNII-K6PH0FVE0K Androsta-1,4-diene-3,17-diol, 4-chloro-17-methyl-, (3beta,17beta)- Halodrol H-DROL Halo 4-Chloro-17a-methyl-androst-1,4-diene-3b,17b-diol V4-chloro-17a-methyl-androst-1,4-diene-3b, 17b-diol 4-Chloro-17alpha-methyl-androst-1,4-diene-3beta,17beta-diol (CAS 1338221-84-3) is a high-purity analytical reference standard with the molecular formula C20H29ClO2 and a molecular weight of 336.90 g/mol.

1338221-84-3 K6PH0FVE0K 4-Chloro-17-methyl-androsta-1,4-diene-3,17-diol, (3beta,17beta)- UNII-K6PH0FVE0K Androsta-1,4-diene-3,17-diol, 4-chloro-17-methyl-, (3beta,17beta)- Halodrol H-DROL Halo 4-Chloro-17a-methyl-androst-1,4-diene-3b,17b-diol V4-chloro-17a-methyl-androst-1,4-diene-3b, 17b-diol 4-Chloro-17alpha-methyl-androst-1,4-diene-3beta,17beta-diol (C20H29ClO2) contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC20H29ClO2
Molecular Weight336.90 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Halogen ContentCl-containing

Recommended Standards

Why CATO?