D,L-threo-β-Hydroxy Aspartic Acid CAS 4294-45-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4294-45-5 |
| Molecular Formula | C4H7NO5 |
| Molecular Weight | 149.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
D,L-threo-β-Hydroxy Aspartic Acid (CAS 4294-45-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C4H7NO5. Molecular weight: 149.10 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C4H7NO5 |
| Molecular Weight | 149.10 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.) | 1958 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 5-(Difluoromethyl)-2-methyl-1H-1,2,4-triazol-3(2H)-one (CAS 343314-82-9)
- Ethyl 2-cyano-2,2-difluoroacetate (CAS 219866-72-5)
- 3-Hydroxyaspartic Acid (CAS 71653-06-0)
- 3-(trifluoromethoxymethyl)azetidine hydrochloride (CAS 2306268-29-9)
- 4-Amino-6-(difluoromethyl)-2-(trifluoromethyl)pyridin-3-ol (CAS 1805330-26-0)
- Ethyl 6-azaspiro[2.5]Octane-1-carboxylate (CAS 1088498-24-1)
- 2-(2-Butyl-1H-benzo[d]imidazol-1-yl)acetic acid (CAS 138992-92-4)
- (2-(Carboxymethyl)phenyl)propanoic acid (CAS 70526-40-8)
- 3-Amino-5,7-dihydroxy-2-(4-hydroxyphenyl)-4H-chromen-4-one (CAS 681016-83-1)
- Semaglutide impurity 269 (CAS CATO-C4X-2226269)
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