Methylparaben CAS 99-76-3
Purity >95%In StockPharmaceutical Standards
| CAS No. | 99-76-3 |
| Molecular Formula | C8H8O3 |
| Molecular Weight | 152.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order Methylparaben (CAS 99-76-3) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C8H8O3. Molecular weight: 152.15 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C8H8O3 |
| Molecular Weight | 152.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
- P-Anisic Acid (CAS 100-09-4)
- Ribitol (CAS 488-81-3)
- 3,5-Diaminobenzoic Acid (CAS 535-87-5)
- 2-(Chloromethyl)-4,5-diamino-3-(difluoromethyl)pyridine (CAS 1805038-01-0)
- [D-Ile3]-Atosiban (CAS CATO-C4X-229368)
- tert-Butyl 4-((2-aminopyridin-3-yl)amino)piperidine-1-carboxylate (CAS 781649-86-3)
- (11bR)-N-[(R)-1-Phenylethyl]-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine (CAS 934705-43-8)
- 4H,5H,6H-Cyclopenta[b]thiophene-2-carbohydrazide (CAS 750599-01-0)
- 9-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2-(((R)-tetrahydro-2H-pyran-2-yl)amino)-1H-purin-6(9H)-one (CAS 163088-95-7)
- Semaglutide Impurity 12 (CAS CATO-C4X-222612)
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