4-Methyl-1,4-dihydropyrido[3,4-d]pyrimidine CAS 51752-72-8
| CAS No. | 51752-72-8 |
| Molecular Formula | C8H9N3 |
| Molecular Weight | 147.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Methyl-1,4-dihydropyrido[3,4-d]pyrimidine is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-Methyl-1,4-dihydropyrido[3,4-d]pyrimidine (CAS 51752-72-8), a certified reference material (molecular formula C8H9N3, MW 147.18 g/mol) for analytical method development and quality control.
4-Methyl-1,4-dihydropyrido[3,4-d]pyrimidine (C8H9N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H9N3 |
| Molecular Weight | 147.18 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 5,8-Dihydropyrido[2,3-d]pyrimidin-4(1H)-one (CAS 104357-95-1)
- 7,8-Dihydropyrido[4,3-d]pyrimidin-5(6H)-one (CAS 1393560-44-5)
- 5,6-Dihydropyrido[3,4-b]pyrazin-7(8H)-one (CAS 1823878-17-6)
- 1,2-Dihydropyrido[3,4-b]pyrazin-2-ol (CAS 205926-64-3)
- 1,2-Dihydropyrido[4,3-e][1,2,4]triazin-3-amine (CAS 754917-12-9)
- 1,4-Dihydropyrido[2,3-d]pyrimidin-4-ol (CAS 205926-59-6)
- 1,4-Dihydropyrido[3,2-d]pyrimidin-4-ol (CAS 205926-60-9)
- 1,4-Dihydropyrido[3,4-d]pyrimidin-4-ol (CAS 205926-61-0)
Recommended Standards
- 4-Ethyl-1H-pyrrolo[2,3-d]pyrimidine (CAS 63205-44-7)
- 4-Methyl-1h-indazol-6-amine (CAS 885520-74-1)
- 4-Aminomethyl-7-azaindole, 97% (CAS 888498-07-5)
- 5-(3,4-Dihydro-2H-pyrrol-5-yl)pyrimidine (CAS 914954-40-8)
- ethyl 3-amino-5-bromofuro[2,3-b]pyridine-2-carboxylate (CAS 1251582-89-4)
- 5-(Thiazol-5-yl)nicotinic acid (CAS 1346687-52-2)
- 5-Fluoro-2-(propan-2-yloxy)aniline (CAS 1019484-18-4)
- Ethyl 2-(2,4-dichlorobenzyl)-3-oxobutanoate (CAS 63218-45-1)
- (4-(Hexyloxy)phenyl)(4-methylpyridin-2-yl)methanone 1187170-41-7 (CAS 1187170-41-7)
- 4-Hydroxy-3'-methyl-[1,1'-biphenyl]-3-carbaldehyde (CAS 893738-02-8)
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