5-methyl-1,3-oxazole-2-carboxylic acid CAS 45676-69-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 45676-69-5 |
| Molecular Formula | C5H9NO3 |
| Molecular Weight | 131.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-methyl-1,3-oxazole-2-carboxylic acid (CAS 45676-69-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C5H9NO3. Molecular weight: 131.13 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C5H9NO3 |
| Molecular Weight | 131.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1970 |
| Nitrogen Atoms | 1 |
Related methyl Standards
- 1,3-Oxazole-5-carbonyl chloride 118994-91-5 (CAS 118994-91-5)
- 1,3-Oxazole-4-carbonyl chloride (CAS 62348-20-3)
- 5-ethyl-1,2-oxazole-3-carbaldehyde (CAS 1368365-43-8)
- Oxazole-4-carbothioamide (CAS 118802-31-6)
- 1,2-Oxazole-5-carbothioamide (CAS 175334-72-2)
- Oxazole-5-carbothioamide (CAS 885274-32-8)
- Oxazole-5-acetic Acid (CAS 1083337-90-9)
- Methyl oxazole-4-carboxylate (CAS 170487-38-4)
Recommended Standards
- 5-Ethynylnicotinaldehyde (CAS 252989-57-4)
- 5-methyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 7169-98-4)
- 5-Amino-2-oxopentanoic acid (CAS 2000-59-1)
- 4-(1,3-Dithiolan-2-yl)-2-methoxy-6-nitrophenyl methanesulfonate (CAS 331460-98-1)
- 2-Chloro-6-(perfluoroethyl)pyrazine (CAS 1206524-40-4)
- n-Allyl-2-bromoprop-2-en-1-amine hydrochloride (CAS 1432026-86-2)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
- N-(5-Aminopyridin-3-yl)acetamide (CAS 934600-90-5)
- N-Nitroso Desmethyl Nizatidine (CAS CATO-C4X-138014)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
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