4-Hydroxyphthalic acid CAS 610-35-5
| CAS No. | 610-35-5 |
| Molecular Formula | C8H6O5 |
| Molecular Weight | 182.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Hydroxyphthalic acid.
CATO supplies 4-Hydroxyphthalic acid (CAS 610-35-5), a certified reference material (molecular formula C8H6O5, MW 182.13 g/mol) for analytical method development and quality control.
The molecular framework of 4-Hydroxyphthalic acid (C8H6O5) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 4-Hydroxyphthalic 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.
Physical & Chemical Properties
| Molecular Formula | C8H6O5 |
| Molecular Weight | 182.13 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.) | 1957 |
Related Hydroxyphthalic Standards
Recommended Standards
- 4-Hydroxybenzo[d][1,3]dioxole-5-carboxylic acid (CAS 4776-00-5)
- 4-Methyl-3-nitropicolinic acid (CAS 21203-65-6)
- 4-Hydroxy-3-nitrobenzaldehyde oxime (CAS 26879-83-4)
- 4-Methyl-5-nitropyridine-2-carboxylic acid (CAS 5832-43-9)
- rel-1-(6-Hydroxy-3-azabicyclo[3.1.1]heptan-3-yl)ethan-1-one (CAS 2748487-58-1)
- 1-((2R,3R,4R,5R)-3,4-Dihydroxy-5-(hydroxymethyl)-3-methyltetrahydrofuran-2-yl)pyrimidin-2(1H)-one (CAS 1106032-88-5)
- (1R,2S,4R,5S)-4-((tert-butyldiphenylsilyl)oxy)bicyclo[3.1.0]Hexan-2-amine (CAS 1443930-60-6)
- Methyl 4-(4-nitrophenyl)-1h-pyrrole-3-carboxylate (CAS 358986-46-6)
- 4-[(methylsulfanyl)methyl]-1,3-thiazol-2-amine (CAS 41247-77-2)
- ethyl 1-sulfanylcyclobutane-1-carboxylate (CAS 264874-47-7)
- Ethyl 5-isopropyl-1H-imidazole-2-carboxylate (CAS 1171125-30-6)
- 2,6-Dibromo-4H-cyclopenta[1,2-b:5,4-b’]dithiophen-4-one (CAS 636588-79-9)
- Ethyl 4,4-dicyclopropyl-3-oxobutanoate (CAS 1870485-10-1)
- Semaglutide impurity 65 (CAS CATO-C4X-222665)
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