Isothiazol-5-ylboronic acid CAS 1162262-34-1
| CAS No. | 1162262-34-1 |
| Molecular Formula | C3H4BNO2S |
| Molecular Weight | 128.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Isothiazol-5-ylboronic acid (CAS 1162262-34-1), molecular formula C3H4BNO2S and molecular weight 128.95 g/mol, is a CATO reference standard with documented purity and traceability.
Isothiazol-5-ylboronic acid (C3H4BNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Isothiazol-5-ylboronic 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 | C3H4BNO2S |
| Molecular Weight | 128.95 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Isothiazol Standards
- Isothiazol-4-ylboronic acid (CAS 1448859-47-9)
- 1-(Isothiazol-5-yl)ethan-1-ol (CAS 1285260-78-7)
- 1-(Isothiazol-3-yl)ethan-1-ol (CAS 1614825-80-7)
- (5-Methyl-isothiazol-3-yl)-methanol (CAS 1803598-19-7)
- (R)-1-(Isothiazol-5-yl)ethan-1-ol (CAS 2241107-61-7)
- (S)-1-(Isothiazol-5-yl)ethan-1-ol (CAS 2241107-54-8)
- 1-(Isothiazol-5-yl)-N-methylmethanamine (CAS 1284196-75-3)
- 1-(Isothiazol-3-yl)ethan-1-one (CAS 88511-35-7)
Recommended Standards
- 4-Thiazoleboronic Acid (CAS 1016642-07-1)
- Dichloroacetic Acid (CAS 79-43-6)
- Copper-zinc alloy powder, -60 mesh (CAS 63338-02-3)
- Chloromethyl chloroformate (CAS 22128-62-7)
- (R)-2-Amino-4-ethynyl-4-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile (CAS 2749965-89-5)
- (3,4-Dichloropyridin-2-yl)methanamine (CAS 1266114-28-6)
- 2-(4-(Trifluoromethoxy)benzylidene)-1H-indene-1,3(2H)-dione (CAS 940827-39-4)
- Ethyl 4-ethoxy-3-nitrobenzoate (CAS 937625-32-6)
- 3,3-Diallyltetrahydrofuran-2-ol (CAS 277317-58-5)
- (R)-5-Phenylimidazolidine-2,4-dione (CAS 41807-35-6)
- Dexamethasone Impurity 16 (CAS 55541-30-5)
- (S)-2-Amino-N-(((S)-1-benzylpyrrolidin-2-yl)methyl)-N-cyclopropyl-3-methylbutanamide (CAS 1401666-61-2)
- Amyloid β/A4 Protein Precursor770 (740-770) trifluoroacetate salt (CAS 1802086-24-3)
- Delta-Sleep Inducing Peptide (CAS 62568-57-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com