4-Aminothiophene-3-carbonitrile hydrochloride CAS 121071-72-5
| CAS No. | 121071-72-5 |
| Molecular Formula | C5H4N2S |
| Molecular Weight | N/A |
| 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 4-Aminothiophene-3-carbonitrile hydrochloride.
4-Aminothiophene-3-carbonitrile hydrochloride (CAS 121071-72-5) is a high-purity analytical reference standard with the molecular formula C5H4N2SHCl and a molecular weight of 160.62 g/mol.
Based on its molecular formula C5H4N2SHCl, 4-Aminothiophene-3-carbonitrile hydrochloride contains a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 160.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H4N2S HCl |
| Molecular Weight | 160.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Aminothiophene Standards
- 3-Aminothiophene-2-carboxylic acid hydrochloride (CAS 1016552-72-9)
- 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)
- 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
- 2-(Trifluoromethyl)nicotinamide (CAS 959108-47-5)
- 2-hydroxy-5-[(2,4,6-trimethylphenyl)sulfamoyl]benzoic acid 670266-31-6 (CAS 670266-31-6)
- (E)-3-Amino-2-cyanobut-2-enethioamide (CAS 758721-53-8)
- (3-(Methylsulfinyl)phenyl)methanamine (CAS 882424-63-7)
- Methyl 2-((trimethylsilyl)methyl)benzoate (CAS 97729-12-9)
- 1-Phenyl-2-(phenyl-lambda3-iodanylidene)-2-((trifluoromethyl)sulfonyl)ethan-1-one (CAS 1443036-49-4)
- 6-Methoxy-2-methyl-4-quinolinol, 97% (CAS 15644-90-3)
- 2-Methoxy-4-(4-(pyrrolidin-1-yl)piperidin-1-yl)aniline (CAS 761440-78-2)
- Z-Tyr-OMe (CAS 13512-31-7)
- Fibrinopeptide B (human) (CAS 36204-23-6)
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