Progesterone Impurity 38 CAS 19289-77-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 19289-77-1 |
| Molecular Formula | C18H24O2 |
| Molecular Weight | 272.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Progesterone Impurity 38 (CAS 19289-77-1) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C18H24O2. Molecular weight: 272.38 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C18H24O2 |
| Molecular Weight | 272.38 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Progesterone Standards
- Progesterone Impurity 37 (CAS 3962-66-1)
- Progesterone Impurity 39 (CAS 2645-92-3)
- Progesterone Impurity 72 (CAS 93519-10-9)
- Progesterone Impurity 73 (CAS 1229-18-1)
- Progesterone Impurity 74 (CAS 96893-14-0)
- Progesterone Impurity 75 (CAS 796-24-7)
- Progesterone Impurity N47 (CAS 82182-55-6)
- Progesterone Impurity 76 (CAS CATO-C4X-150276)
Recommended Standards
- Sodium Valproate Impurity 40 (CAS CATO-C4X-116640)
- Estradiol Impurity 22 (CAS CATO-C4X-163622)
- 14-methoxy-14-oxotetradecanoic acid (CAS 50515-99-6)
- Clacillin impurity 4 (CAS CATO-C4X-15974)
- Mefatinib Impurity 3 (CAS 53449-14-2)
- 2-((4-(3-Benzylureido)but-2-yn-1-yl)oxy)benzamide (CAS 1448030-26-9)
- n-(3-Ethoxypropyl)-3,4-dimethylcyclohexan-1-amine (CAS 1342868-70-5)
- 5-((2-Amino-5-nitrophenyl)thio)-4-chloropyridazin-3(2H)-one (CAS 62688-67-9)
- 1-(3-(Tert-butyl)phenyl)ethan-1-amine (CAS 155734-78-4)
- Fibrinogen Related Peptide (CAS 80755-86-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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