Strontium Ranelate Impurity 1 CAS 4371-20-4
| CAS No. | 4371-20-4 |
| Molecular Formula | C12H10O6 |
| Molecular Weight | 250.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Strontium Ranelate Impurity 1 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.
Strontium Ranelate Impurity 1 (CAS 4371-20-4) is a certified pharmaceutical impurity reference standard with the molecular formula C12H10O6 and a molecular weight of 250.20 g/mol.
Structurally, Strontium Ranelate Impurity 1 (C12H10O6) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 250.20 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C12H10O6 |
| Molecular Weight | 250.20 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Strontium Standards
- Strontium molybdenum oxide, 99% (CAS 13470-04-7)
- Strontium Bromide (CAS 10476-81-0)
- Strontium tin(IV) oxide, 99% (CAS 12143-34-9)
- Strontium zirconate (CAS 12036-39-4)
- Strontium nitride (CAS 12033-82-8)
- Strontium aluminum (CAS 12004-37-4)
- Strontium Ranelate Stage B Impurity (CAS 61320-65-8)
- Strontium hydrogen phosphate (CAS 13450-99-2)
Recommended Standards
- Phloroglucinol Impurity 70 (CAS 61237-21-6)
- Diflunisal (CAS 22494-42-4)
- Phloroglucinol impurity 64 (CAS CATO-C4X-221764)
- Methyl 5-methoxy-7-nitro-1H-indole-2-carboxylate (CAS 1000341-42-3)
- Orforglipron 141 (CAS CATO-C4X-3234141)
- Selumetinib Impurity 19 (CAS CATO-C4X-305319)
- Etrasimod impurity 17 (CAS CATO-C4X-321417)
- 2-(3-((tert-Butoxycarbonyl)amino)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-1-yl)acetic acid (CAS 103105-97-1)
- Methyl(phenyl)silanone (CAS 4543-12-8)
- Ethyl 2-(tert-Butylsulfanyl)acetate (CAS 60178-20-3)
- PFDP (CAS 856893-75-9)
- Methyl 4-(4-hydroxyphenyl)-1H-pyrrole-3-carboxylate (CAS 1330756-00-7)
- 8-Methyl-3-phenylquinoline-5-carboxylic acid (CAS 41191-68-8)
- [γ-Glu]15 Semaglutide (CAS CATO-C4X-222690)
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