5-Chloro-2-(methoxycarbonyl)thiophene-3-boronic acid CAS 2377608-92-7
| CAS No. | 2377608-92-7 |
| Molecular Formula | C6H6BClO4S |
| Molecular Weight | 220.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Chloro-2-(methoxycarbonyl)thiophene-3-boronic 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.
5-Chloro-2-(methoxycarbonyl)thiophene-3-boronic acid (CAS 2377608-92-7), molecular formula C6H6BClO4S and molecular weight 220.44 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 5-Chloro-2-(methoxycarbonyl)thiophene-3-boronic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H6BClO4S |
| Molecular Weight | 220.44 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- (2R)-1-chloro-3-iodo-propan-2-ol (CAS 2484878-87-5)
- (2S)-1-chloro-3-iodo-propan-2-ol (CAS 862113-07-3)
- 4-Chloro-5-(methoxycarbonyl)thiophene-2-boronic acid (CAS 2096331-56-3)
- 2-chloro-4-(methoxycarbonyl)phenyl boronic acid (CAS 603122-80-1)
- 4-Chloro-2-fluoro-3-methylthiophenylboronic acid (CAS 944128-91-0)
- 2-Chloro-2-(2,3-dichlorophenyl)acetonitrile (CAS 1247048-13-0)
- 2-Chloro-2-(2,6-dichlorophenyl)acetonitrile (CAS 1247531-20-9)
- 1-Chloro-5-fluoro-2,4-dinitrobenzene (CAS 327-91-3)
Recommended Standards
- 63476-06-2 Undecane-1,11-dithiol DTXSID10493328 (CAS 63476-06-2)
- 5-Bromo-4-chloropicolinaldehyde (CAS 1060802-20-1)
- 5-Bromo-2-chloroisonicotinaldehyde (CAS 1060802-23-4)
- (2,2,2-Trichloroacetyl)glycine (CAS 15166-50-4)
- 2-(2-Chloro-6-(difluoromethyl)-5-methylpyridin-3-yl)acetonitrile (CAS 1806939-08-1)
- 5-EThyl-2-methoxybenzoic acid (CAS 66873-89-0)
- Methyl 3-Amino-3-thioxopropanoate (CAS 689-09-8)
- 4-(Butoxycarbonyl)phenyl 4-tert-butylbenzoate (CAS 331462-12-5)
- N-(3,4-dimethoxyphenethyl)-2-(methylamino)acetamide (CAS 20939-34-8)
- 7,8-Dihydronaphtho[2,3-d][1,3]dioxol-5(6H)-one (CAS 41303-45-1)
- 6-(2,4-Difluorophenyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 1493941-32-4)
- 1H-Indazole-7-sulfonic acid (CAS 574758-47-7)
- 5-Methoxychroman-3-amine (CAS 110927-03-2)
- Gastric Inhibitory Polypeptide (1-30) amide (porcine) (CAS 134846-93-8)
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