pyrimidine-4,5,6-triamine sulfate hydrate CAS 6640-23-9
| CAS No. | 6640-23-9 |
| Molecular Formula | C4H7N5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
pyrimidine-4,5,6-triamine sulfate hydrate (CAS 6640-23-9), molecular formula C4H7N5H2O4SH2O and molecular weight 241.22 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, pyrimidine-4,5,6-triamine sulfate hydrate (C4H7N5H2O4SH2O) contains a carbohydrate-derived structure, an amide group, a sulfone group. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 241.22 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C4H7N5 H2O4S H2O |
| Molecular Weight | 241.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related pyrimidine Standards
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- 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
- n-((5-Chlorothiophen-2-yl)methyl)-2-methoxyacetamide (CAS 1222953-12-9)
- (3S,5S,8R,9S,10S,13S,14S)-17-iodo-10,13-dimethyl-2,3,4,5,6,7,8,9,10,11,12,13,14,15-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol (CAS 95043-81-5)
- Ethyl 2-(3-bromophenyl)-4-methyl-1H-imidazole-5-carboxylate (CAS 1260655-03-5)
- Boc-D-Trp-OH (CAS 5241-64-5)
- 1-(2-Aminoethyl)piperidin-4-amine (CAS 882568-40-3)
- 4-[4-(4-Chlorophenyl)-4,5-dihydro-2-oxazolyl]quinoline (CAS 158499-69-5)
- 5-(2,6-dichloro-4-pyridyl)-3-[4-(trifluoromethyl)-3-pyridyl]-1,2,4-oxadiazole (CAS 288161-09-1)
- 6-Bromo-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 127820-63-7)
- 2,3-Dichloro-5-hydroxybenzoic acid (CAS 1804882-03-8)
- Glucagon (19-29) (human, rat, porcine) (CAS 64790-15-4)
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