Cholesterol Related Compounds & Impurities

Cholesterol is the principal endogenous sterol, serving as a cell-membrane structural component and precursor of steroid hormones, bile acids and vitamin D, used as a liposomal formulation stabiliser.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Cholesterol reference standards, pharmacopeial and non-pharmacopeial Cholesterol impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Cholesterol-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Pharmaceutical Reference Standards / Impurity Standards

Cholesterol
4-beta-Hydroxy Cholesterol
Cholesterol EP Impurity B
Cholesterol EP Impurity E
27-Hydroxycholesterol
25-Hydroxy Cholesterol
(3beta,24S)-Cholest-5-ene-3,24-diol
7-keto Cholesterol
7beta-Hydroxycholesterol
7-alpha-hydroxy cholesterol
24-Methylenecholesterol
7-Dehydro Desmosterol
22-alpha hydroxy Cholesterol
3beta,5alpha,6beta-Trihydroxycholestane
20(R),22(R)-Dihydroxy Cholesterol
27-Carboxy-7-keto Cholesterol
27-hydroxy-7-keto Cholesterol
Cholesterol EP Impurity C
Cholesterol Impurity 7 Triethylamine Salt (Desmosterol Sulfate Triethylamine Salt)
Murideoxycholic acid
Beta-Hyodeoxycholic Acid
3alpha,12beta-Dihydroxycholanoic Acid
Iso deoxycholic Acid
Triflumuron
Cholesteryl Caprylate
Cholesterol EP Impurity D
Cholesterol Impurity 9
Doristerol
4 Alpha-Hydroxy Cholesterol
Desmosterol Sulfate Sodium Salt
24-Dehydrolathosterol
Cholesterol Acetate
Cholesterol 5beta,6beta-Epoxide
Cholesterol 5alpha,6alpha-Epoxide
Allodeoxycholic Acid
7alpha-Hydroxy-4-cholesten-3-one
Cholesterol Impurity 1
Beta-Sitosterol
Cholesterol EP Impurity A

Metabolites

22-Beta-Hydroxy Cholesterol
20-alpha-Hydroxycholesterol
19-Hydroxycholesterol

Isotope Labelled Compounds

4-beta-Hydroxy Cholesterol-D7
Cholesterol-2,2,3,4,4,6 D6