DL-Alanine CAS 302-72-7
| CAS No. | 302-72-7 |
| Molecular Formula | C3H7NO2 |
| Molecular Weight | 89.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
DL-Alanine (CAS 302-72-7), molecular formula C3H7NO2 and molecular weight 89.09 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, DL-Alanine is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 89.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures DL-Alanine 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.
Physical & Chemical Properties
| Molecular Formula | C3H7NO2 |
| Molecular Weight | 89.09 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related DL Standards
- D-Alanine (CAS 338-69-2)
- L-Alanine (CAS 56-41-7)
- β-Alanine (CAS 107-95-9)
- D-ALANINE (3-13C, 99%) (CAS 133665-48-2)
- β-ALANINE 13C (CAS 65138-34-3)
- β-ALANINE 15N (CAS 204451-53-6)
- 21764-56-7 L-Alanine-1-13C L-Alanine-1-13C,3,3,3-d3 (CAS 21764-56-7)
- 71261-64-8 DL-Alanine-15N 2-(15N)azanylpropanoic acid (CAS 71261-64-8)
Recommended Standards
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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