3-Formyl-4-hydroxybenzoic acid CAS 584-87-2
| CAS No. | 584-87-2 |
| Molecular Formula | C8H6O4 |
| Molecular Weight | 166.13 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 3-Formyl-4-hydroxybenzoic acid.
CATO supplies 3-Formyl-4-hydroxybenzoic acid (CAS 584-87-2), a certified reference material (molecular formula C8H6O4, MW 166.13 g/mol) for analytical method development and quality control.
Structurally, 3-Formyl-4-hydroxybenzoic acid (C8H6O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 166.13 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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.) | 1957 |
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-5-hydroxybenzoic acid (CAS 1243395-76-7)
- 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)
Recommended Standards
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- Lornoxicam Impurity 8 (CAS 13120-39-3)
- 4’-Chlorobiphenyl-3-carbaldehyde (CAS 139502-80-0)
- 3-Chloro-2-[(1E)-[2-(4-chlorophenyl)hydrazin-1-ylidene]methyl]-5-(trifluoromethyl)pyridine (CAS 338420-02-3)
- N-(2-methyl-6-(piperidin-3-yl)pyridin-4-yl)pyrazin-2-amine (CAS 1316219-39-2)
- 4-(1-ethyl-1,4-dimethylpentyl)phenol (CAS 142731-63-3)
- (4-methyl-2-propoxyphenyl)methanamine (CAS 1248041-79-3)
- Budesonide 21-Sulfate (CAS 1436796-04-1)
- 1-Chloro-2,2,4-trimethylpentane (CAS 2371-06-4)
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- (R)-3-Hydroxy-N,N-dimethylpyrrolidine-1-carboxamide (CAS 1315054-87-5)
- Allo-D-Ile12-Tirzepatide (CAS CATO-CPTD788963)
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