3-Aminothiophene-2-carboxylic acid hydrochloride CAS 1016552-72-9
| CAS No. | 1016552-72-9 |
| Molecular Formula | C5H5NO2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Aminothiophene-2-carboxylic acid hydrochloride (CAS 1016552-72-9), a certified reference material (molecular formula C5H5NO2SHCl, MW 179.62 g/mol) for analytical method development and quality control.
Structurally, 3-Aminothiophene-2-carboxylic acid hydrochloride (C5H5NO2SHCl) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 179.62 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 3-Aminothiophene-2-carboxylic acid hydrochloride 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 | C5H5NO2S HCl |
| Molecular Weight | 179.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Aminothiophene Standards
- 4-Aminothiophene-3-carboxylic acid hydrochloride (CAS 1049777-16-3)
- 5-Aminothiophene-3-carboxylic acid (CAS 116539-01-6)
- Ethyl (2-aminothiophene-3-carbonyl)carbamate (CAS 1171382-99-2)
- Potassium 3-aminothiophene-2-carboxylate (CAS 1210469-45-6)
- 4-Aminothiophene-3-carbonitrile hydrochloride (CAS 121071-72-5)
- 3-Aminothiophene-2-carbonitrile hydrochloride (CAS 122805-71-4)
- 4-Aminothiophene-3-carbaldehyde (CAS 1261658-19-8)
- 5-Aminothiophene-2,4-dicarboxylic acid (CAS 13196-24-2)
Recommended Standards
- N-allyl-2,2-dichloro-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 61219-95-2)
- n,n-Diethyl-4-iodobenzenesulfonamide (CAS 167156-20-9)
- 3-Chloro-N-(pyrrolidin-3-ylmethyl)benzamide hydrochloride (CAS 2039301-72-7)
- 5-(Dimethoxymethyl)pyrimidin-4-amine (CAS 51290-89-2)
- 5-Chloro-2,4-difluorobenzoic Acid (CAS 130025-33-1)
- 3-((2-Hydroxy-4-nitrophenyl)amino)pyrazine-2,5-dicarbonitrile (CAS 918410-46-5)
- 1-Benzylpiperidine-4-carbothioamide (CAS 1181985-95-4)
- 6-Bromo-3-chloro-1H-pyrrolo[2,3-b]pyridine (CAS 1190321-31-3)
- 3-Chloro-5-methyl-4-nitropyridine 1-oxide (CAS 97944-37-1)
- [D-Ser8]-Semaglutide A (CAS CATO-C4X-2226116)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com