1,2-Dihydropyrimido[5,4-e][1,2,4]triazine CAS 19801-79-7
| CAS No. | 19801-79-7 |
| Molecular Formula | C5H5N5 |
| Molecular Weight | 135.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,2-Dihydropyrimido[5,4-e][1,2,4]triazine (CAS 19801-79-7), a certified reference material (molecular formula C5H5N5, MW 135.13 g/mol) for analytical method development and quality control.
Owing to a nitrile group, 1,2-Dihydropyrimido[5,4-e][1,2,4]triazine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 135.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 1,2-Dihydropyrimido[5,4-e][1,2,4]triazine 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 | C5H5N5 |
| Molecular Weight | 135.13 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 5 |
Related Dihydropyrimido Standards
- 3,4-Dihydropyrimido[5,4-d]pyrimidine (CAS 100047-44-7)
- 7-Methyl-1,4-dihydropyrimido[4,5-d]pyrimidine (CAS 31375-19-6)
- 1,2-Dihydropyrimido[4,5-d]pyrimidin-4-amine (CAS 88526-65-2)
- 3-Methyl-1,2-dihydropyrimido[5,4-e][1,2,4]triazine (CAS 19801-82-2)
- 5,6-Dihydropyrimido[4,5-d]pyrimidin-2-amine (CAS 7702-65-0)
- 5-Methyl-1,2-dihydropyrimido[5,4-e][1,2,4]triazine (CAS 25624-79-7)
- 7-Methyl-1,2-dihydropyrimido[5,4-e][1,2,4]triazine (CAS 19801-87-7)
- 5,6-Dihydropyrimido[4,5-d]pyrimidin-2-ol (CAS 120267-08-5)
Recommended Standards
- 1,2,4-Triazolo[4,3-a]pyrazin-8-amine (CAS 68774-79-8)
- 1H-imidazo[4,5-b]pyrazin-2-amine (CAS 361382-81-2)
- [1,2,4]triazolo[4,3-c]pyrimidin-3-amine (CAS 859765-68-7)
- 1H-Pyrazolo[3,4-c]pyridazin-3-amine (CAS 2125-94-2)
- N-Isobutyl-2-bromo-6-fluorobenzylamine (CAS 1355247-08-3)
- N-(3-(Trifluoromethyl)benzyl)pyrazine-2-carboxamide (CAS 606132-12-1)
- Indolizino[6,5,4,3-ija]quinoline (CAS 88785-44-8)
- 7-Isopropylquinolin-2(1H)-one (CAS 206120-77-6)
- 1-(2-Bromoethyl)-3-methyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (CAS 309938-31-6)
- 6-bromo-4-methyl-1H-benzimidazole (CAS 255064-10-9)
- 1-Cyclopropyl-6-fluoro-7-(3-((methylamino)methyl)pyrrolidin-1-yl)-4-oxo-8-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxylic acid (CAS 118829-06-4)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com