Pyrido[3,4-d]pyrimidine CAS 253-86-1
| CAS No. | 253-86-1 |
| Molecular Formula | C7H5N3 |
| Molecular Weight | 131.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 131.13 g/mol gives Pyrido[3,4-d]pyrimidine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Pyrido[3,4-d]pyrimidine (CAS 253-86-1), molecular formula C7H5N3 and molecular weight 131.13 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Pyrido[3,4-d]pyrimidine (C7H5N3) is characterized by a nitrile group, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H5N3 |
| Molecular Weight | 131.13 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
Related Pyrido Standards
- Pyrido[2,3-b]pyrazine (CAS 322-46-3)
- Pyrido[2,3-c]pyridazine (CAS 6133-99-9)
- Pyrido[2,3-d]pyrimidine (CAS 254-61-5)
- Pyrido[3,2-d]pyrimidine (CAS 254-80-8)
- Pyrido[3,4-b]pyrazine (CAS 254-86-4)
- Pyrido[4,3-d]pyrimidine (CAS 253-87-2)
- Pyrido[2,3-e][1,2,4]triazine (CAS 254-97-7)
- 9AH-pyrido[1,2-a]pyrazine (CAS 50791-02-1)
Recommended Standards
- rel-((2R,3R)-3-Hydroxypyrrolidine-2-carboxylic acid) (CAS 4298-06-0)
- rel-(2S,4S)-4-Hydroxypyrrolidine-2-carboxylic acid (CAS 49761-17-3)
- rel-4-(Hydroxymethyl)-5-methyloxazolidin-2-one (CAS 99726-32-6)
- Benzoyl Cyanide (CAS 613-90-1)
- 2-(3-Chlorophenyl)-6-nitro-1H-benzo[d]imidazol-1-yl dimethylcarbamate (CAS 860649-46-3)
- 1-(2-Pyrrolidinoethyl)piperazine, 98% (CAS 22763-69-5)
- 1-(1-(Azetidin-3-yl)-1H-1,2,3-triazol-4-yl)ethan-1-ol dihydrochloride (CAS 1798032-54-8)
- Methyl 2-Nonynoate (CAS 111-80-8)
- 4-Chloro-6-(4-methyl-1H-imidazol-1-yl)pyrimidine (CAS 941294-32-2)
- (E)-2-((benzyloxy)imino)-N-(2,4-difluorophenyl)acetamide (CAS 866043-49-4)
- bis(2,5-dioxopyrrolidin-1-yl) 2,2'-(ethane-1,2-diylbis(oxy))diacetate (CAS 441052-81-9)
- Tert-butyl 3-(bromomethyl)-5-chloro-1H-indazole-1-carboxylate (CAS 944899-43-8)
- N-Methyl-N-(4-nitrophenyl)benzenesulfonamide (CAS 21226-37-9)
- Peptide 441 (CAS CATO-CPTD788441)
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