Ac-Cys(farnesyl)-OMe CAS 135304-08-4
| CAS No. | 135304-08-4 |
| Molecular Formula | C21H35NO3S |
| Molecular Weight | 381.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ac-Cys(farnesyl)-OMe.
Ac-Cys(farnesyl)-OMe (CAS 135304-08-4) is a high-purity analytical reference standard with the molecular formula C21H35NO3S and a molecular weight of 381.57 g/mol.
Ac-Cys(farnesyl)-OMe (C21H35NO3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 Formula | C21H35NO3S |
| Molecular Weight | 381.57 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- 3-Bromo-5-(pentafluoro-lambda6-sulfanyl)benzenesulfonyl chloride (CAS 1706453-16-8)
- (R)-5-(((tert-butyldimethylsilyl)oxy)diphenylmethyl)pyrrolidin-2-one (CAS 1643108-27-3)
- tert-butyl (4S)-4-[2-[tert-butyl(dimethyl)silyl]oxyethyl]-2,2-dioxo-oxathiazolidine-3-carboxylate (CAS 2476729-47-0)
- (R,Z)-4-((tert-Butyldimethylsilyl)oxy)-N,N-diphenylpent-2-enamide (CAS 1820030-49-6)
- N-methyl-2- (pyridin-4-yl) ethanamine (CAS 55496-55-4)
- 2-Amino-N-cyclopropyl-N-((S)-1-(4-fluorophenyl)ethyl)propanamide (CAS 1354024-92-2)
- Ethyl 3,5-diphenylpyridazine-4-carboxylate (CAS 660423-56-3)
- 1-(8-(Hydroxymethyl)-3,4-dihydroisoquinolin-2(1H)-yl)ethanone (CAS 1956319-50-8)
- (S)-2-Amino-3-methyl-N-(4-nitrobenzyl)butanamide (CAS 743377-26-6)
- 4-Methoxy-3-sulfamoylbenzene-1-sulfonyl chloride (CAS 98280-42-3)
- 2,6-Dimethyl-1,4-dihydro-[4,4'-bipyridine]-3,5-dicarbonitrile (CAS 64089-25-4)
- 3-Ethyl-7-hydroxy-4,8-dimethyl-2h-chromen-2-one (CAS 31575-15-2)
- N-(2-(Dimethylamino)ethyl)-9-phenoxyacridine-4-carboxamide (CAS 89459-24-5)
- Des-Gly34-Tirzepatide (CAS CATO-CPTD788940)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com