4-Hydrazinyl-6-(methylthio)pyrimidine CAS 99469-77-9
| CAS No. | 99469-77-9 |
| Molecular Formula | C5H8N4S |
| Molecular Weight | 156.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydrazinyl-6-(methylthio)pyrimidine (CAS 99469-77-9), molecular formula C5H8N4S and molecular weight 156.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Hydrazinyl-6-(methylthio)pyrimidine (C5H8N4S) contains a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 156.21 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 4-Hydrazinyl-6-(methylthio)pyrimidine 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 | C5H8N4S |
| Molecular Weight | 156.21 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Hydrazinyl Standards
- 4-Hydrazinyl-2-(methylthio)pyrimidine (CAS 104408-29-9)
- 6-Hydrazinyl-3-methylpyrimidine-2,4(1H,3H)-dione (CAS 1142201-78-2)
- 5-Hydrazinyl-2-(methylsulfanyl)pyridine (CAS 1314927-45-1)
- 2-Hydrazinyl-5,6-dihydro-4H-cyclopenta[d]thiazole (CAS 857022-78-7)
- 4-Hydrazinyl-N-methyl-1H-imidazole-5-carboxamide (CAS 741206-64-4)
- 6-Hydrazinyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 678974-38-4)
- 2-Hydrazinyl-5-isopropyl-1,3,4-thiadiazole (CAS 299163-87-4)
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Recommended Standards
- 4-Ethoxypyrimidine-2-thiol (CAS 72565-78-7)
- 4-Methoxy-2-(methylthio)pyrimidine (CAS 76541-59-8)
- 4-Cyclopropyl-5-thioxopyrazolidin-3-one (CAS 565179-45-5)
- 4-Methyl-6-(methylamino)-1,3,5-triazine-2-thiol (CAS 57639-43-7)
- 5-Bromo-N-ethoxyfuran-2-carboxamide (CAS 1089542-86-8)
- 5-Chloro-1-(2-fluorophenyl)-3-propyl-1h-pyrazole-4-carboxylic acid (CAS 1152978-92-1)
- 287397-89-1 Diethyl Chlorothiophosphate-d10 NSC 43776-d10 O,O-(Diethyl-d10) Thiophosphoryl Chloride Phosphorochloridothioic Acid O,O-(Diethyl-d10) Ester (CAS 287397-89-1)
- 1-(2-Bromobenzyl)-5-methyl-1h-pyrazol-4-amine (CAS 1339871-95-2)
- Ethyl 2-(2-chlorophenyl)imidazo[1,2-a]pyrazine-3-carboxylate (CAS 1956376-69-4)
- 4-({[(3-chlorophenyl)methyl]amino}methylidene)-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 338975-70-5)
- 3-(Aminomethyl)-N,N,3,5,5-pentamethylcyclohexanamine (CAS 1363404-78-7)
- 1-Bromo-3-(1-bromoethyl)benzene (CAS 59770-98-8)
- (4-Chlorophenyl)(1-fluorocyclopropyl)methanone (CAS 103543-60-8)
- Insulin Degludec Impurity 28 (CAS CATO-C4X-215728)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com