4-PREGNEN-11β, 17, 21-TRIOL-3, 20-DIONE 3-O-CARBOXYMETHYLOXIME CAS 43188-86-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 43188-86-9 |
| Molecular Formula | C23H33NO7 |
| Molecular Weight | 435.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-PREGNEN-11β, 17, 21-TRIOL-3, 20-DIONE 3-O-CARBOXYMETHYLOXIME (CAS 43188-86-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C23H33NO7. Molecular weight: 435.51 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C23H33NO7 |
| Molecular Weight | 435.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 1 |
Related PREGNEN Standards
- 4-PREGNEN-11β, 21-DIOL-3, 18, 20-TRIONE 18, 21-DIACETATE (CAS 3329-79-1)
- 4-PREGNEN-11β, 21-DIOL-3, 20-DIONE 21-HEMISUCCINATE (CAS 10215-77-7)
- 5-PREGNEN-3β, 17-DIOL-20-ONE DIACETATE (CAS 1176-21-2)
- 5-PREGNEN-3β, 21-DIOL-20-ONE DIACETATE (CAS 1693-63-6)
- 4-PREGNEN-11β, 21-DIOL-3, 18, 20-TRIONE 21-HEMISUCCINATE (CAS 52910-82-4)
- 5-PREGNEN-3β, 20α-DIOL DIACETATE (CAS 1913-47-9)
- 4-PREGNEN-11β, 21-DIOL-3, 18, 20-TRIONE 21-ACETATE (CAS 297-91-6)
- 5-PREGNEN-16, 17-EPOXY-3β, 21-DIOL-20-ONE 21-ACETATE (CAS 28444-97-5)
Recommended Standards
- 4-Hydroxy-3-[[2-(4-tricyclo[3.3.1.13,7]dec-1-ylphenoxy)acetyl]amino]-benzoic Acid Methyl Ester (CAS 934593-90-5)
- 6-(Adamantan-1-yl)-3-amino-N-cyclopropyl-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 489405-10-9)
- 4-(4-(Allyloxy)benzoyl)-3-hydroxy-5-(4-isopropylphenyl)-1-(2-methoxyethyl)-1H-pyrrol-2(5H)-one (CAS 618077-36-4)
- 6-methyl-3,4-dihydro-2H-1-benzothiopyran-4-amine (CAS 1094350-91-0)
- ((3S,6R)-6-(trifluoromethyl)tetrahydro-2H-pyran-3-yl)methanol (CAS 1917356-74-1)
- Riboflavin lmpurity 20 (CAS 57609-95-7)
- (3Ar,5r,6s,6ar)-2,2-Dimethyl-5-[(morpholin-4-yl)methyl]-tetrahydro-2h-furo[2,3-d][1,3]dioxol-6-ol (CAS 157733-81-8)
- 7-(4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)butanamido)heptanoic acid (CAS 2172142-06-0)
- Ivermectin EP Impurity D (CAS 102190-55-6)
- Ac-(5-31)Semaglutide (CAS CATO-C4X-2226279)
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