1-Hydroxy-7-methyl-1,3-dihydrobenzo[c][1,2]oxaborole-6-carboxylic acid CAS 2152663-73-3
| CAS No. | 2152663-73-3 |
| Molecular Formula | C9H9BO4 |
| Molecular Weight | 191.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Hydroxy-7-methyl-1,3-dihydrobenzo[c][1,2]oxaborole-6-carboxylic acid (C9H9BO4) 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).
1-Hydroxy-7-methyl-1,3-dihydrobenzo[c][1,2]oxaborole-6-carboxylic acid (CAS 2152663-73-3) is a high-purity analytical reference standard with the molecular formula C9H9BO4 and a molecular weight of 191.98 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-Hydroxy-7-methyl-1,3-dihydrobenzo[c][1,2]oxaborole-6-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H9BO4 |
| Molecular Weight | 191.98 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) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
Related Hydroxy Standards
- Methyl 1-hydroxy-1,3-dihydrobenzo[c][1,2]oxaborole-7-carboxylate (CAS 1268335-29-0)
- 2-(1-Hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-7-yl)acetic acid (CAS 1268335-32-5)
- 2-(1-Hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-6-yl)acetic acid (CAS 1268336-23-7)
- methyl 1-hydroxy-1,3-dihydro-2,1-benzoxaborole-6-carboxylate (CAS 1800305-79-6)
- 2-(1-hydroxy-1,3-dihydro-2,1-benzoxaborol-3-yl)acetic acid (CAS 19203-45-3)
- 2-Hydroxy-3,4-dihydro-2H-benzo[e][1,2]oxaborinine-8-carboxylic acid (CAS 2006313-17-1)
- 2-Hydroxy-4-oxo-4-phenyl-2-butenoic acid (CAS 103344-70-3)
- 4-Hydroxy-8-methoxy-2H-chromen-2-one (CAS 106754-13-6)
Recommended Standards
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- (5-Methoxy-1H-pyrrolo[3,2-b]pyridin-6-yl)boronic acid (CAS 956407-23-1)
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- 6-(2,6-Dichlorophenyl)-2-(methylthio)pyrido[2,3-d]pyrimidin-7-amine (CAS 179343-52-3)
- MGS0008 (CAS 234085-20-2)
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- 81988-89-8 UH11FDQ454 Ramoplanin A(sub 3) Ramoplanin A3 (S)-2-(3-Chloro-4-hydroxyphenyl)-N-(N(sup 2)-((2Z,4Z)-8-methyl-2,4-nonadienoyl)-(S)-asparaginyl-(2S,3S)-3-hydroxyasparaginyl-(R)-2-(p-hydroxyphenyl)glycyl-(R)-ornithyl-(2R,3R)-allothreonyl-2-(p-hydroxyphenyl)glycyl-2-(p-hydroxyphenyl)glycyl-(2S,3S)-allothreonyl-(S)-phenylalanyl-(R)-ornithyl-(S)-2-(p-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycyl-(2R,3R)-allothreonyl-(S)-2-(p-hydroxyphenyl)glycylglycyl-(S)-leucyl-(R)-alanyl)glycine psi1-lactone Ramoplanin A 1 (peptide moiety), 1-(N(sup 2)-methyl-1-oxo-2,4-nonadienyl)-L-asparagine)-11-(L-2-(4-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycine)-, (Z,Z)- UNII-UH11FDQ454 (CAS 81988-89-8)
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