2-(Carboxymethyl)-4,6-dimethoxybenzoic acid CAS 4778-99-8
| CAS No. | 4778-99-8 |
| Molecular Formula | C11H12O6 |
| Molecular Weight | 240.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(Carboxymethyl)-4,6-dimethoxybenzoic acid (CAS 4778-99-8) is a high-purity analytical reference standard with the molecular formula C11H12O6 and a molecular weight of 240.21 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-(Carboxymethyl)-4,6-dimethoxybenzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 240.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), 2-(Carboxymethyl)-4,6-dimethoxybenzoic 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 | C11H12O6 |
| Molecular Weight | 240.21 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.) | 1958 |
Related Carboxymethyl Standards
- 2-(Carboxymethyl)-4,5-dimethoxybenzoic acid, >96% (CAS 3809-00-5)
- N-(Carboxymethyl)-N-(3-methoxyphenyl)glycine (CAS 30042-66-1)
- 4-((Carboxymethyl)amino)isophthalic acid (CAS 4435-99-8)
- 5-(Carboxymethyl)-4-oxo-4,5-dihydroisoxazolo[5,4-d]pyrimidine-3-carboxylic acid (CAS 931353-71-8)
- 3-(Carboxymethyl)adamantane-1-carboxylic acid (CAS 56531-58-9)
- 2-O-(Carboxymethyl)-D-glucose (CAS 95350-40-6)
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Recommended Standards
- 2-(Furan-2-yl)-3-hydroxynaphthalene-1,4-dione (CAS 918905-44-9)
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- 2,2-Anhydrothymidine (CAS 22423-26-3)
- 2-(3-Nitrophenyl)benzo[d]oxazole (CAS 840-56-2)
- 5-methyl-2-nitro-2,3-dihydro-1H-indene-1,3-dione (CAS 50919-97-6)
- 4-{[(9S)-9-hydroxy-2-azatricyclo[9.4.0.0³,⁸]pentadeca-1(11),3,5,7,12,14-hexaene-2-carbonyl]amino}butanoic acid (CAS 1523530-65-5)
- IR(MPHMQ)2TMD (CAS 1228537-80-1)
- tert-Butyl (2-methyl-5-nitropyridin-3-yl)carbamate (CAS 1008139-18-1)
- Heptanoic acid, 7-[[(1,1-dimethylethoxy)carbonyl]amino]-, 2,5-dioxo-1-pyrrolidinyl ester (CAS 441349-04-8)
- Methyl 2-ethoxy-6-methylbenzoate (CAS 104216-21-9)
- 2-Amino-2-(3,4-difluorophenyl)propanoic acid (CAS 1152858-59-7)
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- Serpent Peptide (CAS 823202-99-9)
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