(5-Cyclopropylthiophen-2-yl)boronic acid CAS 1913240-52-4
| CAS No. | 1913240-52-4 |
| Molecular Formula | C7H9BO2S |
| Molecular Weight | 168.02 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 (5-Cyclopropylthiophen-2-yl)boronic acid.
(5-Cyclopropylthiophen-2-yl)boronic acid (CAS 1913240-52-4) is a high-purity analytical reference standard with the molecular formula C7H9BO2S and a molecular weight of 168.02 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, (5-Cyclopropylthiophen-2-yl)boronic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 168.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures (5-Cyclopropylthiophen-2-yl)boronic 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 | C7H9BO2S |
| Molecular Weight | 168.02 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Sulfur Atoms | 1 |
Related Cyclopropylthiophen Standards
- (4-Cyclopropylthiophen-2-yl)boronic acid (CAS 2225178-38-9)
- 1-(4-Cyclopropylthiophen-2-yl)ethan-1-one (CAS 1021432-58-5)
- (5-Cyclopropylthiophen-2-yl)methanol (CAS 1456863-44-7)
- (4-Cyclopropylthiophen-3-yl)methanol (CAS 1602792-09-5)
- (3-Cyclopropylthiophen-2-yl)methanol (CAS 2296417-42-8)
- (4-Cyclopropylthiophen-2-yl)methanol (CAS 2416262-91-2)
- (4-Cyclopropylthiophen-2-yl)methanamine (CAS 1341913-65-2)
- (5-Cyclopropylthiophen-2-yl)methanamine (CAS 933739-48-1)
Recommended Standards
- 3-(Methylthio)phenylboronic acid (CAS 128312-11-8)
- 2-(Thiophen-2-yl)-1,3,2-dioxaborinane (CAS 197024-83-2)
- 3-(Bromomethyl)-3-fluoroazetidine (CAS 2231675-93-5)
- ((Phenylthio)methyl)boronic acid (CAS 67975-88-6)
- benzyl N-(1-phenylbut-3-en-1-yl)carbamate (CAS 138723-71-4)
- tert-Butyl 4-chloro-1H-indazole-1-carboxylate (CAS 1252572-23-8)
- 3-[2-(Cyclobutylmethoxy)ethyl]piperidinehydrochloride (CAS 1220016-97-6)
- Ethyl 2-(3-formylphenoxy)acetate (CAS 51264-68-7)
- n-[4-(chloromethyl)-1,3-thiazol-2-yl]-n-(2,6-dimethylphenyl)acetamide (CAS 854035-96-4)
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- 2-Acetoxy-4-chlorobenzophenone (CAS 890099-13-5)
- Des-Val23-Tirzepatide (CAS CATO-CPTD788950)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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