Thiophene-3,4-diamine dihydrobromide CAS 169698-12-8
| CAS No. | 169698-12-8 |
| Molecular Formula | C4H6N2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Thiophene-3,4-diamine dihydrobromide (CAS 169698-12-8), molecular formula C4H6N2SHBr and molecular weight 195.08 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H6N2SHBr, Thiophene-3,4-diamine dihydrobromide contains a nitrile group, sulfur-containing functionality, bromine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 195.08 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.
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.
Physical & Chemical Properties
| Molecular Formula | C4H6N2S 2*HBr |
| Molecular Weight | 195.08 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 1-(4-(Cyanomethyl)phenyl)-4-hydroxy-2-oxo-1,2,5,6-tetrahydropyridine-3-carbonitrile (CAS 1956371-66-6)
- 2-((4-Chlorophenyl)thio)-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carbaldehyde (CAS 431924-79-7)
- N-butyl-6-chloro-N-ethyl-2-methylpyrimidin-4-amine (CAS 175140-68-8)
- 4,5-Diethyl 1-[4-methyl-6-(trifluoromethyl)pyrimidin-2-yl]-1H-1,2,3-triazole-4,5-dicarboxylate (CAS 866135-73-1)
- 2-(3,4-Dihydroisoquinolin-2(1h)-yl)propanoic acid (CAS 938350-35-7)
- Sofosbuvir Impurity 97 (CAS 1911578-88-5)
- Ethyl 6-methyl-2-oxo-4-(m-tolyl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 356773-71-2)
- Semaglutide Impurity 11 (CAS CATO-C4X-222611)
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