5-Borono-2-hydroxybenzoic acid CAS 1071925-39-7
| CAS No. | 1071925-39-7 |
| Molecular Formula | C7H7BO5 |
| Molecular Weight | 181.94 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 5-Borono-2-hydroxybenzoic acid.
CATO supplies 5-Borono-2-hydroxybenzoic acid (CAS 1071925-39-7), a certified reference material (molecular formula C7H7BO5, MW 181.94 g/mol) for analytical method development and quality control.
5-Borono-2-hydroxybenzoic acid (C7H7BO5) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H7BO5 |
| Molecular Weight | 181.94 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
Related Borono Standards
- 3-Borono-4-hydroxybenzoic acid (CAS 1272675-36-1)
- 4-Borono-2-hydroxybenzoic acid (CAS 1394902-32-9)
- 3-Borono-5-hydroxybenzoic acid (CAS 851667-21-5)
- 4-Borono-2-pyridinecarboxylic Acid 2-Methyl Ester (CAS 1150114-30-9)
- 5-Borono-2-methylnicotinic acid (CAS 2291165-22-3)
- 3-Borono-5-methylbenzoic acid (CAS 1150114-66-1)
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Recommended Standards
- (5-Amino-2-nitrophenyl)boronic acid (CAS 100449-87-4)
- (3-Methyl-5-nitropyridin-2-yl)boronic acid (CAS 1208315-05-2)
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- 1,1,2,3-Tetrachloropropane (CAS 18495-30-2)
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