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73529

Clobetasol

pharmaceutical impurity standard, ≥95.0% (HPLC)

Synonym(s):

Clobetasol propionate impurity G (PhEur), (11β,16β)-21-Chloro-9-fluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione

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About This Item

Empirical Formula (Hill Notation):
C22H28ClFO4
CAS Number:
25122-41-2
Molecular Weight:
410.91
UNSPSC Code:
41116107
PubChem Substance ID:
329763802
EC Number:
246-633-8
MDL number:
MFCD03695616
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grade

analytical standard

assay

≥95.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

impurities

≤10.0% related substances, ≤5.0% solvents, ≤5.0% water

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

SMILES string

C[C@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)[C@@]1(O)C(=O)CCl

InChI

1S/C22H28ClFO4/c1-12-8-16-15-5-4-13-9-14(25)6-7-19(13,2)21(15,24)17(26)10-20(16,3)22(12,28)18(27)11-23/h6-7,9,12,15-17,26,28H,4-5,8,10-11H2,1-3H3/t12-,15-,16-,17-,19-,20-,21-,22-/m0/s1

InChI key

FCSHDIVRCWTZOX-DVTGEIKXSA-N

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

pictograms

Health hazard
GHS08

signalword

Danger

Hazard Classifications

Aquatic Chronic 4 - Repr. 1B - STOT RE 2

target_organs

Adrenal gland,Immune system

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
BCBS7533V
BCBR2508V

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E A Olsen et al.
Journal of the American Academy of Dermatology, 15(2 Pt 1), 246-255 (1986-08-01)
Clobetasol-17-propionate, the most potent of currently available topical steroids as predicted by the vasoconstrictor assay, has just been approved in the United States. In psoriasis, it has proved significantly more effective than class II steroids and as or more effective
O Yélamos et al.
Journal of the European Academy of Dermatology and Venereology : JEADV, 35(1), 143-149 (2020-05-05)
Treatment response for psoriasis is typically evaluated using clinical scores. However, patients can relapse after clinical clearance, suggesting persistent inflammation. Dermoscopy, reflectance confocal microscopy (RCM) and optical coherence tomography (OCT) can non-invasively improve treatment response assessment. To compare the clinical
Jason E Ham et al.
Cutaneous and ocular toxicology, 38(2), 112-117 (2018-05-04)
Formaldehyde allergic contact dermatitis (ACD) may be due to products with free formaldehyde or formaldehyde-releasing agents; however, assessment of formaldehyde levels in such products is infrequently conducted. The present study quantifies total releasable formaldehyde from "in-use" products associated with formaldehyde
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