7-Hydroxy Aminopterin 97772-99-1 N-[4-[[(2,4-Diamino-1,7-dihydro-7-oxo-6-pteridinyl)methyl]amino]benzoyl]- L-Glutamic Acid N-[4-[[(2,4-Diamino-7,8-dihydro-7-oxo-6-pteridinyl)methyl]amino]benzoyl]-L-glutamic Acid N-[p-[[(2,4-Diamino-7-hydroxy-6-pteridinyl)methyl]amino]benzoyl]-L-glutamic Acid CAS 97772-99-1
| CAS No. | 97772-99-1 |
| Molecular Formula | C19H20N8O6 |
| Molecular Weight | 456.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 7-Hydroxy Aminopterin 97772-99-1 N-[4-[[(2,4-Diamino-1,7-dihydro-7-oxo-6-pteridinyl)methyl]amino]benzoyl]- L-Glutamic Acid N-[4-[[(2,4-Diamino-7,8-dihydro-7-oxo-6-pteridinyl)methyl]amino]benzoyl]-L-glutamic Acid N-[p-[[(2,4-Diamino-7-hydroxy-6-pteridinyl)methyl]amino]benzoyl]-L-glutamic Acid (C19H20N8O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 456.41 g/mol, it falls into the moderately-high-molecular-weight range. 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).
7-Hydroxy Aminopterin 97772-99-1 N-[4-[[(2,4-Diamino-1,7-dihydro-7-oxo-6-pteridinyl)methyl]amino]benzoyl]- L-Glutamic Acid N-[4-[[(2,4-Diamino-7,8-dihydro-7-oxo-6-pteridinyl)methyl]amino]benzoyl]-L-glutamic Acid N-[p-[[(2,4-Diamino-7-hydroxy-6-pteridinyl)methyl]amino]benzoyl]-L-glutamic Acid (CAS 97772-99-1) is a high-purity analytical reference standard with the molecular formula C19H20N8O6 and a molecular weight of 456.41 g/mol.
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 | C19H20N8O6 |
| Molecular Weight | 456.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 8 |
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Recommended Standards
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- 4-((4-Chlorophenyl)thio)-6-(((4-chlorophenyl)thio)methyl)-2-(pyridin-3-yl)pyrimidine (CAS 860609-58-1)
- Gemcitabine Impurity 10 (CAS 122111-11-9)
- 4,6-Dichloro-3-fluoro-1H-pyrrolo[2,3-b]pyridine (CAS 1935610-84-6)
- (E)-4-ethoxybenzaldehyde O-cinnamoyl oxime (CAS 297150-24-4)
- 6-Fluoro-2-methylbenzothiazole (CAS 399-73-5)
- 2-Chlorobenzene-1,3-diol (CAS 6201-65-6)
- 2-((Carbamoyloxy)methyl)-2-methylhexyl prop-2-yn-1-ylcarbamate (CAS 25385-05-1)
- N-(4-Fluorophenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide (CAS 1574583-79-1)
- 3-Methyl-2-(trifluoromethyl)benzaldehyde (CAS 1261874-94-5)
- Ethyl 3-(ethylamino)butanoate (CAS 3440-35-5)
- 3-Formylphenyl cyclohexanecarboxylate (CAS 774575-29-0)
- Semaglutide impurity 29 (CAS 110990-08-4)
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