Progesterone Impurity 23 CAS 21063-91-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21063-91-2 |
| Molecular Formula | C21H26O3 |
| Molecular Weight | 326.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Progesterone Impurity 23 (CAS 21063-91-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H26O3. Molecular weight: 326.43 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H26O3 |
| Molecular Weight | 326.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Progesterone Standards
- Progesterone Bisnoraldehyde Impurity (CAS 81201-82-3)
- Progesterone EP Impurity L (CAS 2257421-80-8)
- Progesterone Impurity 44 (CAS CATO-C4X-150244)
- Progesterone Impurity 48 (CAS 115387-31-0)
- Progesterone Impurity 49 (CAS 96790-16-8)
- Progesterone Impurity 58 (CAS 2919563-38-3)
- Progesterone Impurity 61 (CAS CATO-C4X-150261)
- Progesterone Impurity 79 (CAS CATO-C4X-150279)
Recommended Standards
- N1-(2,2-bis(ethylthio)acetyl)-N2-phenyloxalamide (CAS 338975-26-1)
- Prostaglandin Impurity 1 (CAS 240405-20-3)
- N-(3-(4-(Dimethylamino)phenyl)propyl)-4-ethoxybenzamide (CAS 953197-19-8)
- 3-chloro-4-ethyl-1H-pyridazin-6-one (CAS 61404-44-2)
- (2-ethyl-6-methylphenyl)methanamine (CAS 750571-54-1)
- 1,1-Cyclopropanedicarboxylic acid dimethyl ester (CAS 6914-71-2)
- 2-3-4-6-Tetra-O-pivaloyl-β-D-galactopyranosyl isothiocyanate (CAS 147948-52-5)
- N-(2-(3-(Thiophen-2-yl)acrylamido)phenyl)-2-(trifluoromethyl)benzamide (CAS 1203432-11-4)
- Pantoprazole Impurity 37 (CAS CATO-C4X-139937)
- Acetyl Tetrapeptide- 15 (CAS 928007-64-1)
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 13829788188 / jacky.chen@cato-chem.com