Riboflavin EP Impurity B CAS 1086-80-2
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1086-80-2 |
| Molecular Formula | C12H10N4O2 |
| Molecular Weight | 242.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Riboflavin EP Impurity B (CAS 1086-80-2) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C12H10N4O2. Molecular weight: 242.23 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C12H10N4O2 |
| Molecular Weight | 242.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
Related Riboflavin Standards
- Riboflavin Impurity N18 (CAS 3051-94-3)
- Riboflavin EP Impurity A (CAS 1088-56-8)
- Riboflavin Impurity 37 (CAS 14684-48-1)
- Riboflavin Impurity 13 (CAS 4250-90-2)
- Riboflavin Impurity 14 (CAS 21079-31-2)
- Riboflavin EP Impurity C (CAS 2535-20-8)
- Riboflavin Impurity 29 (CAS CATO-C4X-181929)
- Riboflavin RC 3 (CAS 111437-10-6)
Recommended Standards
- Zidovudine Impurity 19 (CAS CATO-C4X-178319)
- Urapidil Impurity 90 (CAS CATO-C4X-192490)
- (5-Ethoxy-4-methyloxazole-2-carbonyl)alanine (CAS CATO-C4X-177951)
- Benidipine Impurity 58 (CAS CATO-C4X-112058)
- Cilastatin E-isomer Impurity 18 (CAS CATO-C4X-196018)
- 3,6-Bis(prop-2-yn-1-yloxy)acridin-9(10H)-one (CAS 122105-96-8)
- (S)-4-((1,2,3,4-Tetrahydroisoquinolin-3-yl)methyl)morpholine dihydrochloride (CAS 1649997-27-2)
- 4-(((1-Carboxyethyl)thio)methyl)-5-methylfuran-2-carboxylic acid (CAS 333352-55-9)
- (5,6-Dichloro-4-(difluoromethyl)pyridin-3-yl)methanol (CAS 1805992-84-0)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
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