5-Bromo-4-hydrazinyl-2-(methylthio)pyrimidine CAS 875-96-7
| CAS No. | 875-96-7 |
| Molecular Formula | C5H7BrN4S |
| Molecular Weight | 235.10 g/mol |
| 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 5-Bromo-4-hydrazinyl-2-(methylthio)pyrimidine.
5-Bromo-4-hydrazinyl-2-(methylthio)pyrimidine (CAS 875-96-7), molecular formula C5H7BrN4S and molecular weight 235.10 g/mol, is a CATO reference standard with documented purity and traceability.
5-Bromo-4-hydrazinyl-2-(methylthio)pyrimidine (C5H7BrN4S) contains a nitrile group, sulfur-containing functionality, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C5H7BrN4S |
| Molecular Weight | 235.10 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.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- Methyl 3-bromo-5-methylthiophene-2-carboxylate (CAS 1257535-60-6)
- methyl 5-bromo-2-methyl-thiophene-3-carboxylate (CAS 1259396-11-6)
- 2-Bromo-5-(oxolan-3-yl)-1,3,4-thiadiazole (CAS 1342036-39-8)
- methyl 2-bromo-2-(thiophen-3-yl)acetate (CAS 135660-91-2)
- 5-Bromo-N,N-dimethylthiazole-2-carboxamide (CAS 1414958-22-7)
- 2-(3-Bromo-5-methylthiophen-2-yl)acetic acid (CAS 1484993-84-1)
- methyl 5-bromo-4-methylthiophene-3-carboxylate (CAS 1519255-52-7)
- 2-(5-Bromo-2-methylthiophen-3-yl)acetic acid (CAS 1536868-96-8)
Recommended Standards
- 5-Bromo-3-methyl-2-(methylthio)pyrimidin-4(3H)-one (CAS 81560-06-7)
- 5-Bromo-4-methoxy-2-(methylthio)pyrimidine (CAS 81560-09-0)
- 5-Bromo-2-methoxy-4-(methylthio)pyrimidine (CAS 59549-52-9)
- 5-Bromo-6-methyl-2-(methylthio)pyrimidin-4(3H)-one (CAS 33238-63-0)
- Cyagard RF 1204 (CAS 124788-09-6)
- N-Methyl-1-(5-methyl-1H-indol-3-yl)methanamine (CAS 915922-67-7)
- 4-[(2-methylphenyl)methyl]morpholine-2-carbonitrile (CAS 1466551-41-6)
- 5-(Aminomethyl)-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (CAS 1481120-46-0)
- Secbumeton D5 (ethyl D5) (CAS 1705649-53-1)
- 1-(1,2,3,4-Tetrahydronaphthalen-1-yl)cyclopropan-1-amine hydrochloride (CAS 2172495-64-4)
- butane-2,3-diamine dihydrochloride (CAS 55536-62-4)
- Quinidine benzoate (CAS 60723-45-7)
- 2-(2-(3-Methylcyclopentyl)thiazol-4-yl)acetic acid (CAS 1486945-16-7)
- [pGlu] Semaglutide (CAS CATO-C4X-2226288)
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