Famotidine impurity 71 CAS 87855-83-2
| CAS No. | 87855-83-2 |
| Molecular Formula | C12H12N2O2 |
| Molecular Weight | 216.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Famotidine impurity 71 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Famotidine impurity 71 (CAS 87855-83-2) is a certified pharmaceutical impurity reference standard with the molecular formula C12H12N2O2 and a molecular weight of 216.24 g/mol.
Structurally, Famotidine impurity 71 (C12H12N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 216.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C12H12N2O2 |
| Molecular Weight | 216.24 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 DMSO, DMF, methanol |
| 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.) | 1982 |
| Nitrogen Atoms | 2 |
Related Famotidine Standards
- Famotidine Impurity 2 (CAS 95907-34-9)
- Famotidine Impurity 42 (CAS CATO-C4X-139242)
- Famotidine EP Impurity H (CAS 106649-96-1)
- Famotidine Impurity 61 (CAS CATO-C4X-139261)
- Famotidine Impurity 30 (CAS CATO-C4X-139231)
- Famotidine impurity 01 (CAS 1185040-73-6)
- Famotidine Impurity 16 (CAS 76823-93-3)
- Famotidine Impurity 02 (CAS 81152-53-6)
Recommended Standards
- Tryptophan EP Impurity H (CAS 6052-68-2)
- Leflunomide Impurity 25 (CAS CATO-C4X-167325)
- 3-Carboxy Detomidine (CAS 115664-39-6)
- Leflunomide EP Impurity G (CAS 724429-16-7)
- Ramelteon Imputiry 18 (CAS 1092507-07-7)
- CAS 2019119-44-7 (CAS 2019119-44-7)
- Mesalazine Impurity 54 (CAS CATO-C4X-132454)
- 8-Nitroquinolin-5-amine (CAS 42606-39-3)
- N-Hydroxy-5-methylnicotinimidamide (CAS 1426087-88-8)
- Ethyl methylphenylalaninate hydrochloride (CAS 19881-54-0)
- 4-Methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1236119-88-2)
- (1E,4E)-1,5-Di(2-thienyl)-1,4-pentadien-3-one (CAS 155669-26-4)
- 2-(4-Methoxyphenyl)-3a,4,7,7a-tetrahydro-1H-4,7-epoxyisoindole-1,3(2H)-dione (CAS 43069-77-8)
- Semaglutide impurity 256 (CAS CATO-C4X-2226256)
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