4-Borono-3,5-dimethylbenzoic acid CAS 851335-18-7
| CAS No. | 851335-18-7 |
| Molecular Formula | C9H11BO4 |
| Molecular Weight | 193.99 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 4-Borono-3,5-dimethylbenzoic acid.
4-Borono-3,5-dimethylbenzoic acid (CAS 851335-18-7) is a high-purity analytical reference standard with the molecular formula C9H11BO4 and a molecular weight of 193.99 g/mol.
The molecular framework of 4-Borono-3,5-dimethylbenzoic acid (C9H11BO4) 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 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 | C9H11BO4 |
| Molecular Weight | 193.99 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 |
| 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.) | 1987 |
Related Borono Standards
- 4-Borono-2,6-dimethylbenzoic acid (CAS 1383104-93-5)
- 4-Borono-2-ethylbenzoic acid (CAS 851335-16-5)
- 3-Borono-5-methoxybenzoic acid (CAS 1050424-08-2)
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Recommended Standards
- 5-Chloro-3-fluoropicolinoyl chloride (CAS 207994-09-0)
- 4-(2-Methoxy-2-oxoethyl)phenylboronic Acid (CAS 454185-96-7)
- 6-Chloro-5-fluoro-3-pyridinecarbonyl chloride (CAS 78686-85-8)
- 3-Formyl-4-methoxy-5-methylphenyl boronic acid (CAS 2121512-68-1)
- 2-Butoxyethyl Bromide, Pract. 6550-99-8 2-Bromoethyl Butyl Ether, Pract. (CAS 6550-99-8)
- Methyl 1-(4-chlorobenzyl)-1H-indole-2-carboxylate (CAS 860611-52-5)
- (5-Fluorobenzofuran-2-yl)boronic acid (CAS 473416-33-0)
- 5-(2-Methoxyethoxy)pyrazine-2-carboxylic acid (CAS 710322-69-3)
- 5-(Aminomethyl)-2-(difluoromethyl)-3-iodopyridin-4-amine (CAS 1806886-23-6)
- {4-[2-oxo-2-(1-pyrrolidinyl)ethyl]phenyl}amine hydrochloride (CAS 1185706-92-6)
- n-(3-Chloro-4-fluorobenzyl)pentan-2-amine (CAS 1248193-39-6)
- Ac-Arg-OH dihydrate (CAS 210545-23-6)
- Lumateperone impurity 55 (CAS CATO-C4X-220155)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
Why CATO?
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