Pyrimidine-4,5-diamine xhydrochloride CAS 63211-97-2
| CAS No. | 63211-97-2 |
| Molecular Formula | C4H6N4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pyrimidine-4,5-diamine xhydrochloride (C4H6N4HCl) contains a nitrile group, chlorine 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.
CATO supplies Pyrimidine-4,5-diamine xhydrochloride (CAS 63211-97-2), a certified reference material (molecular formula C4H6N4HCl, MW 146.58 g/mol) for analytical method development and quality control.
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 | C4H6N4 HCl |
| Molecular Weight | 146.58 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Pyrimidine Standards
- Pyrimidine-2-carboximidhydrazide (CAS 1005-03-4)
- Pyrimidine-5-carboxaldehyde (CAS 10070-92-5)
- 4,4'-(Pyrimidine-2,5-diyl)dianiline (CAS 102570-64-9)
- Pyrimidine-4-carbaldehyde oxime (CAS 1073-65-0)
- Pyrimidine-5-carboxamidine hydrochloride (CAS 1195613-50-3)
- Pyrimidine-4-sulfonyl chloride (CAS 1198596-10-9)
- Pyrimidine-2,4,6-tricarbaldehyde (CAS 1209493-65-1)
- Pyrimidine-2,5-dicarboxylic acid (CAS 127527-24-6)
Recommended Standards
- 7-Bromo-3-(2-chloro-5-(trifluoromethyl)pyrimidin-4-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indole-6-carbonitrile (CAS 2173193-94-5)
- N'-((1H-Indol-3-yl)methylene)-2-((4-chlorobenzyl)oxy)benzohydrazide (CAS 348584-76-9)
- 1-Cyclopropyl-N-hydroxy-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboximidamide (CAS 1263217-70-4)
- 2-(6-Chloropyridazin-3-yl)-5-oxo-2,5-dihydro-1H-pyrazole-3-carboxylic acid (CAS 1208089-53-5)
- 2-((3bS,4aR)-3-(Difluoromethyl)-5,5-difluoro-3b,4,4a,5-tetrahydro-1H-cyclopropa[3,4]cyclopenta[1,2-c]pyrazol-1-yl)acetic acid (CAS 1626337-85-6)
- Methyl 2-((1,3-dioxoisoindolin-2-yl)methyl)-3-oxobutanoate (CAS 565471-90-1)
- 1-Cyclopropyl-5-oxo-N-propylpyrrolidine-3-carboxamide (CAS 1258654-83-9)
- 4,4'-Dibromo-3,3'-dimethoxy-1,1'-biphenyl (CAS 6161-47-3)
- Cefditoren (CAS 104145-95-1)
- Pancreatic Polypeptide (1-17)-(Ala31,Aib32)-Neuropeptide Y (18-36) (human) trifluoroacetate salt (CAS 313988-70-4)
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