Purvalanol A CAS 212844-53-6
| CAS No. | 212844-53-6 |
| Molecular Formula | C19H25ClN6O |
| Molecular Weight | 388.89 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 Purvalanol A.
Purvalanol A (CAS 212844-53-6), molecular formula C19H25ClN6O and molecular weight 388.89 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Purvalanol A (C19H25ClN6O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 388.89 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Purvalanol A meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H25ClN6O |
| Molecular Weight | 388.89 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2017 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
Related Purvalanol Standards
Recommended Standards
- Methyl 4-chloro-2,6-bis(phenylthio)pyrimidine-5-carboxylate (CAS 87847-25-4)
- Cetirizine EP Impurity C (CAS 83881-59-8)
- Methyl 2-chloro-4,6-bis(phenylthio)pyrimidine-5-carboxylate (CAS 87847-24-3)
- Levocetirizine Impurity 35 (CAS 130018-76-7)
- 4-PREGNEN-1α, 11β, 21-TRIOL-3, 20-DIONE (CAS 10163-49-2)
- 1-(2-Bromoethyl)indolin-2-one (CAS 90844-77-2)
- 2-((Piperidin-4-ylmethyl)thio)pyridine (CAS 794464-04-3)
- (S)-3-amino-2-(2,3,4-trimethoxybenzyl)propanoic acid (CAS 1260614-88-7)
- Cabazitaxel Impurity 47 (CAS CATO-C4X-111547)
- 1H-[1,2,4]triazolo[1,5-a]pyrimidin-5-one (CAS 14384-66-8)
- 2-Chloro-3-(trifluoromethyl)pyridin-4-amine (CAS 1393572-25-2)
- 8,9-Dihydropyrido[1,2-a]indol-6(7H)-one (CAS 91486-93-0)
- Strontium nitride (CAS 12033-82-8)
- [D-Phe22]Semaglutide (CAS CATO-C4X-2226222)
Why CATO?
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