4-Chloro-6-hydrazinyl-2-(methylthio)pyrimidine CAS 89280-24-0
| CAS No. | 89280-24-0 |
| Molecular Formula | C5H7ClN4S |
| Molecular Weight | 190.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrile group, sulfur-containing functionality, chlorine substitution, 4-Chloro-6-hydrazinyl-2-(methylthio)pyrimidine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 190.65 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-Chloro-6-hydrazinyl-2-(methylthio)pyrimidine (CAS 89280-24-0) is a high-purity analytical reference standard with the molecular formula C5H7ClN4S and a molecular weight of 190.65 g/mol.
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 | C5H7ClN4S |
| Molecular Weight | 190.65 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.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 5-Chloro-2-(ethylthio)pyrimidin-4(1H)-one (CAS 106146-79-6)
- 2-Chloro-n-(1,3-thiazol-2-yl)propanamide (CAS 116200-98-7)
- methyl 2-chloro-2-(thiophen-3-yl)acetate (CAS 1249784-85-7)
- 2-chloro-4,5-dimethylthiophene-3-carboxylic acid (CAS 1261769-27-0)
- 4-Chloro-2-(dimethylamino)-1,3-thiazole-5-carbaldehyde (CAS 129865-54-9)
- 4-Chloro-2-methyl-5-(methylsulfinyl)pyrimidine (CAS 1314926-93-6)
- 2-Chloro-N-(thiazol-5-ylmethyl)acetamide (CAS 1353983-78-4)
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Recommended Standards
- 4-Chloro-5-Methoxy-2-Methylthiopyrimidine (CAS 87026-45-7)
- 4-chloro-6-methoxy-2-(methylthio)pyrimidine (CAS 89466-42-2)
- 3-Chloro-N-(thiazol-2-yl)propanamide (CAS 26774-38-9)
- 4-Chlorophenyl methyl sulfone (CAS 98-57-7)
- FIPI (CAS 939055-18-2)
- 3-Amino-N-(2-ethoxy-5-methylphenyl)benzamide (CAS 1706438-75-6)
- 3-Oxo-2-(pyridin-2-yl)propanenitrile (CAS 62591-21-3)
- 4-(Difluoromethyl)-6-hydroxypicolinamide (CAS 1806779-76-9)
- 3-(3,5-Dimethyl-1H-pyrazol-4-yl)-propylamine dihydrochloride (CAS 1429056-14-3)
- 3-Oxaspiro[5.5]Undecane-9-carbaldehyde (CAS 2092688-34-9)
- 4,4'-Diphenyltetrathiafulvalene (CAS 5152-94-3)
- 2-(((6-Methylpyrimidin-4-yl)thio)methyl)imidazo[1,2-a]pyridine (CAS 1251575-02-6)
- (3β)-3-(Acetyloxy)-chol-5-ene-24-carboxylic Acid Ethyl Ester (CAS 75861-02-8)
- D-Tyr1-Tirzepatide (CAS CATO-CPTD788928)
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