2-Hydroxy-5-(methoxycarbonyl)benzoic Acid CAS 79128-78-2
| CAS No. | 79128-78-2 |
| Molecular Formula | C9H8O5 |
| Molecular Weight | 196.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Hydroxy-5-(methoxycarbonyl)benzoic Acid (CAS 79128-78-2) is a high-purity analytical reference standard with the molecular formula C9H8O5 and a molecular weight of 196.16 g/mol.
The molecular framework of 2-Hydroxy-5-(methoxycarbonyl)benzoic Acid (C9H8O5) 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 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Hydroxy-5-(methoxycarbonyl)benzoic Acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H8O5 |
| Molecular Weight | 196.16 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.) | 1979 |
Related Hydroxy Standards
- N-hydroxy-5-(N-hydroxycarbamimidoyl)picolinamide (CAS 1135282-99-3)
- 7-Hydroxy-1,3-benzodioxole-5-carboxylic Acid Methyl Ester (CAS 116119-01-8)
- 2-(2-Hydroxy-4-methoxyphenyl)-2-oxoacetic acid (CAS 120240-70-2)
- 7-Hydroxy-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxylic acid (CAS 160657-99-8)
- 6-Hydroxy-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxylic acid (CAS 160658-00-4)
- 3-Hydroxy-5-(methoxycarbonyl)benzoic Acid (CAS 167630-15-1)
- 7-Hydroxy-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxylic acid (CAS 197584-99-9)
- [(5-Hydroxy-pyridine-3-carbonyl)-amino]-acetic acid (CAS 325970-25-0)
Recommended Standards
- 2-Hydroxy-4-(methoxycarbonyl)benzoic acid (CAS 29602-00-4)
- 2-Hydroxy-N-(3-nitrophenyl)acetamide (CAS 859980-47-5)
- 2-Hydrazinylterephthalic acid (CAS 89977-10-6)
- 2-Methoxy-3-nitrobenzamide (CAS 722538-98-9)
- 5-(((3-Chlorophenyl)sulfonyl)methyl)-N-hydroxyisoxazole-3-carboxamide (CAS 823220-25-3)
- (s)-(-)-2-(boc-amino)-3-methyl-1-butanol (s)-(-)-boc-valinol (s)-2-(tertbutoxycarbonylamino)-3-methylbutanol (s)-n-(tert-butoxycarbonyl)-valinol (s)-n-(tert-butoxycarbonyl)valinol (s)-tert-butyl 1-hydroxy-3-methylbutan-2-ylcarbamate 79069-14-0 N-Boc-L-valinol boc-l-valinol boc-val-ol boc-valinol n-(tert-butoxycarbonyl)-l-valinol n-alpha-t-butyloxycarbonyl-l-valinol n-alpha-tert-butyloxycarbonyl-l-valinol n-t-boc-l-valinol n-tboc-l-valinol n-tert-butoxycarbonyl-l-valinol (CAS 79069-14-0)
- 2-((5-Benzyl-1,3,4-oxadiazol-2-yl)thio)-N-(m-tolyl)acetamide (CAS 220597-82-0)
- (2-amino-2-methylpropyl)(tert-butyl)amine (CAS 38401-66-0)
- 1-(2,3-dihydro-1-benzofuran-2-yl)methanamine hydrochloride (CAS 19997-54-7)
- 2,2-Difluoro-2-(4-(trifluoromethoxy)phenyl)acetic acid (CAS 1112044-47-9)
- methyl 5-chloro-2-methyl-7-(trifluoromethyl)thieno[3,2-b]pyridine-3-carboxylate (CAS 648859-70-5)
- Fmoc-Leu-Gly-OH (CAS 82007-05-4)
- tert-butyl N-(ethylamino)carbamate (CAS 476362-41-1)
- Semaglutide impurity 108 (CAS CATO-C4X-2226108)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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