(S)-2-Hydroxy-3-methyl-3,4-dihydro-2H-benzo[e][1,2]oxaborinine-8-carboxylic acid CAS 2006321-69-1
| CAS No. | 2006321-69-1 |
| Molecular Formula | C10H11BO4 |
| Molecular Weight | 206.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(S)-2-Hydroxy-3-methyl-3,4-dihydro-2H-benzo[e][1,2]oxaborinine-8-carboxylic acid (CAS 2006321-69-1), molecular formula C10H11BO4 and molecular weight 206.00 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, (S)-2-Hydroxy-3-methyl-3,4-dihydro-2H-benzo[e][1,2]oxaborinine-8-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 206.00 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (S)-2-Hydroxy-3-methyl-3,4-dihydro-2H-benzo[e][1,2]oxaborinine-8-carboxylic 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 | C10H11BO4 |
| Molecular Weight | 206.00 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
Related S Standards
- 3-(1-Hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-7-yl)propanoic acid (CAS 1268335-33-6)
- 3-(1-Hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-5-yl)propanoic acid (CAS 1268336-38-4)
- 1-Hydroxy-3,3-dimethyl-1,3-dihydrobenzo[c][1,2]oxaborole-5-carboxylic acid (CAS 1393477-34-3)
- 1-Hydroxy-3,3-dimethyl-1,3-dihydrobenzo[c][1,2]oxaborole-6-carboxylic acid (CAS 1393477-51-4)
- (R)-2-Hydroxy-3-methyl-3,4-dihydro-2H-benzo[e][1,2]oxaborinine-8-carboxylic acid (CAS 2006321-71-5)
- (2-Hydroxy-3-(trifluoromethyl)phenyl)boronic acid (CAS 1072944-17-2)
- 4-Hydroxy-3-(trifluoromethyl)phenylboronic Acid (CAS 1187874-94-7)
- (4-Hydroxy-2-(trifluoromethyl)phenyl)boronic acid (CAS 943918-05-6)
Recommended Standards
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- 2,4-Dichloro-5-fluoroimidazo[1,5-b]pyridazine (CAS 2761197-14-0)
- (E)-(3-(3-Methoxy-3-oxoprop-1-en-1-yl)phenyl)boronic acid (CAS 380430-59-1)
- (Z)-4-(2-chlorobenzylidene)-2-phenyloxazol-5(4h)-one (CAS 77435-90-6)
- 2-(2,4-Difluorophenoxy)-3-[3-(trifluoromethyl)phenyl]quinoline (CAS 337921-92-3)
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