2-Formyl-5-hydroxybenzoic acid CAS 1243395-76-7
| CAS No. | 1243395-76-7 |
| Molecular Formula | C8H6O4 |
| Molecular Weight | 166.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-Formyl-5-hydroxybenzoic acid 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.
2-Formyl-5-hydroxybenzoic acid (CAS 1243395-76-7), molecular formula C8H6O4 and molecular weight 166.13 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-Formyl-5-hydroxybenzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 166.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H6O4 |
| Molecular Weight | 166.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Formyl Standards
- 3-Formyl-5-hydroxybenzoic acid (CAS 1022160-01-5)
- Methyl 5-formyl-2-pyrimidinecarboxylate (CAS 1086393-49-8)
- 2-Formyl-4-hydroxybenzoic acid (CAS 1243359-24-1)
- 2-Formyl-3-hydroxybenzoic acid (CAS 1243461-12-2)
- 2-Formyl-6-hydroxybenzoic acid (CAS 4743-48-0)
- 3-Formyl-2-hydroxybenzoic Acid (CAS 610-04-8)
- 4-Formyl-2-hydroxybenzoic acid (CAS 51572-88-4)
- 4-Formyl-3-hydroxybenzoic acid (CAS 619-12-5)
Recommended Standards
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- 1-(5-Hydroxy-1-phenyl-1H-pyrazol-4-yl)butane-1,3-dione (CAS 321574-37-2)
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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