5-Hydroxybenzene-1,2,3-tricarboxylic acid CAS 6274-40-4
| CAS No. | 6274-40-4 |
| Molecular Formula | C9H6O7 |
| Molecular Weight | 226.14 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.
5-Hydroxybenzene-1,2,3-tricarboxylic acid (CAS 6274-40-4), molecular formula C9H6O7 and molecular weight 226.14 g/mol, is a CATO reference standard with documented purity and traceability.
5-Hydroxybenzene-1,2,3-tricarboxylic acid (C9H6O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5-Hydroxybenzene-1,2,3-tricarboxylic 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 | C9H6O7 |
| Molecular Weight | 226.14 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Hydroxybenzene Standards
- 5-Hydroxybenzene-1,2,4-tricarboxylic acid (CAS 4961-03-9)
- 5-Acetyl-2-hydroxybenzene-1-sulfonyl chloride (CAS 66264-54-8)
- 3-Acetyl-4-hydroxybenzene-1-sulfonamide (CAS 136081-47-5)
- 3-Hydroxybenzene-1,2-disulfonamide (CAS 1243286-48-7)
- 2-Hydroxybenzene-1,3-disulfonamide (CAS 1243476-10-9)
- 4-Hydroxybenzene-1,3-disulfonamide (CAS 876487-13-7)
- 4-Hydroxybenzene-1,3-disulfonic acid (CAS 96-77-5)
- 3-Hydroxybenzene-1-sulfonyl chloride (CAS 56157-93-8)
Recommended Standards
- 5,6-Dinitro-2,3-dihydrobenzo[b][1,4]dioxine (CAS 59820-94-9)
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- 6,7-Dinitro-2,3-dihydro-benzo[1,4]dioxime (CAS 57356-48-6)
- 4-Amino-5-nitrophthalic acid (CAS 89939-49-1)
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- (4-Amino-6-methylpyridin-3-yl)methanol (CAS 15742-82-2)
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- (2-Bromophenyl)(1H-pyrrol-1-yl)methanone (CAS 161988-46-1)
- Methyl 2-(2-methoxyphenyl)-2-methylpropanoate (CAS 40801-03-4)
- 2-(Trifluoromethyl)-5,6-dihydro-4H-pyrrolo[3,4-d]thiazole (CAS 1245915-62-1)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
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