4-Aminopyrimidine-2-carbothioamide CAS 245321-47-5
| CAS No. | 245321-47-5 |
| Molecular Formula | C5H6N4S |
| Molecular Weight | 154.19 g/mol |
| 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.
4-Aminopyrimidine-2-carbothioamide (CAS 245321-47-5) is a high-purity analytical reference standard with the molecular formula C5H6N4S and a molecular weight of 154.19 g/mol.
Based on its molecular formula C5H6N4S, 4-Aminopyrimidine-2-carbothioamide contains a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 154.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C5H6N4S |
| Molecular Weight | 154.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Aminopyrimidine Standards
- 4-aminopyrimidine-5-carbothioamide (CAS 56584-63-5)
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- Methyl 2-aminopyrimidine-4-carboxylate (CAS 2164-66-1)
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Recommended Standards
- 4-Acetylthiophene-2-carbaldehyde (CAS 37815-63-7)
- 4,6-Dihydropyrazolo[1,5-c]thiazole-2-carbaldehyde (CAS 623564-68-1)
- 4-Hydroxy-5-methyl-2-(methylthio)pyrimidine (CAS 20651-30-3)
- 4,5-Dihydro-7H-thieno[2,3-c]pyran-7-one (CAS 28424-70-6)
- (E)-3-(dimethylamino)-1-(pyrazin-2-yl)but-2-en-1-one (CAS 886361-86-0)
- 1,4-Bis(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)benzene (CAS 61843-05-8)
- N-((4-allyl-5-((4-(tert-butyl)benzyl)thio)-4H-1,2,4-triazol-3-yl)methyl)-4-chlorobenzenesulfonamide (CAS 338422-20-1)
- 1-(2,6-Dichloro-4-(trifluoromethyl)phenyl)-1H-pyrrole-2-sulfonyl chloride (CAS 1858251-52-1)
- Butyl[(pyridin-4-yl)methyl]amine dihydrochloride (CAS 103394-25-8)
- Ethyl 2-(2-((5-(4-bromophenyl)-1,3,4-oxadiazol-2-yl)thio)propanamido)-4,5-dimethylthiophene-3-carboxylate (CAS 332162-04-6)
- (5E)-5-(4-Fluorobenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one (CAS 402-93-7)
- (6-(Propylthio)pyridin-3-yl)boronic acid (CAS 1256345-97-7)
- (5-Bromobenzo[d]thiazol-2-yl)methanamine hydrochloride (CAS 2138191-03-2)
- Tirzepatide Impurity 36 (CAS CATO-C4X-324036)
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