Malic acid (disodium salt) CAS 676-46-0
| CAS No. | 676-46-0 |
| Molecular Formula | C4H4Na2O5 |
| Molecular Weight | 178.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Malic acid (disodium salt) 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.
Malic acid (disodium salt) (CAS 676-46-0), molecular formula C4H4Na2O5 and molecular weight 178.05 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H4Na2O5, Malic acid (disodium salt) contains a carbohydrate-derived structure; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 178.05 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C4H4Na2O5 |
| Molecular Weight | 178.05 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
Related Malic Standards
- Malic Acid Impurity 12 (CAS CATO-C4X-250912)
- Malic Acid Impurity 13 (CAS CATO-C4X-250913)
- Malic Acid Impurity 14 (CAS CATO-C4X-250914)
- Malic Acid Impurity 15 (CAS 71901-42-3)
- Malic Acid Impurity 15 (CAS 4198-33-8)
- Malic Acid Impurity 2 (CAS 140235-34-3)
- Malic Acid Impurity 3 (CAS 66178-02-7)
- Malic Acid Impurity 6 (CAS 63640-09-5)
Recommended Standards
- 5-Bromo-4-methyl-1,2-thiazole (CAS 503427-04-1)
- 2,2,2-Trifluoroethyl 2,2-difluoroacetate (CAS 524060-65-9)
- 5-Bromo-3-methylisothiazole (CAS 20493-60-1)
- 2,2-Difluoroethyl 2,2,2-trifluoroacetate (CAS 7556-84-5)
- (s)-2-Amino-3-(4-bromo-2-fluorophenyl)propanoic acid (CAS 1213206-88-2)
- 1-Cyano-cyclopropylcarboxylic acid ethyl ester (CAS 1558-81-2)
- n-(1h-Benzo[d]imidazol-2-yl)-5-methylfuran-2-carboxamide (CAS 352679-26-6)
- 3-Bromo-4-cyano-5-fluorobenzoic acid (CAS 1805583-99-6)
- 1-((1H-pyrazol-1-yl)methyl)cyclopropane-1-carboxylic acid hydrochloride (CAS 1255717-43-1)
- 1-[(6-hydrazinylpyridin-3-yl)sulfonyl]-4-methylpiperazine (CAS 561012-68-8)
- 2-Chloro-4-methyl-5-(trifluoromethyl)pyridine (CAS 780802-36-0)
- 5-Bromo-2-(hydroxymethyl)benzoic acid (CAS 627909-55-1)
- 1-(3-(Isopentylthio)phenyl)ethan-1-one (CAS 1342657-27-5)
- Peptide Impurity 82 (CAS 10491-78-8)
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