Pteroyltri-γ-L-glutamic acid (>85%) CAS 89-38-3
| CAS No. | 89-38-3 |
| Molecular Formula | C29H33N9O12 |
| Molecular Weight | 699.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Pteroyltri-γ-L-glutamic acid (>85%).
Pteroyltri-γ-L-glutamic acid (>85%) (CAS 89-38-3), molecular formula C29H33N9O12 and molecular weight 699.63 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C29H33N9O12, Pteroyltri-γ-L-glutamic acid (>85%) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 699.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C29H33N9O12 |
| Molecular Weight | 699.63 g/mol |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 9 |
Recommended Standards
- 2,2'-((2-(2-(2-(Bis(carboxymethyl)amino)-5-(methoxy(6-nitrobenzo[d][1,3]dioxol-5-yl)methyl)phenoxy)ethoxy)-4-methylphenyl)azanediyl)diacetic acid (CAS 103471-64-3)
- Iopamidol Impurity 33 (CAS CATO-C4X-145033)
- Dapagliflozin Impurity 111 (CAS CATO-C4X-1138111)
- Iopamidol Impurity 49 (CAS CATO-C4X-145049)
- 5-methoxypyrimidine-2-carbonitrile (CAS 87362-32-1)
- 6,7-Dimethoxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid (CAS 5278-37-5)
- 3H,4H-pyrrolo[1,2-d][1,2,4]triazin-4-one (CAS 37526-43-5)
- 3-(2,4-Difluorobenzyl)piperidin-3-ol (CAS 1340204-31-0)
- 2-Bromo-N-[4-(1-piperidinylsulfonyl)phenyl]-acetamide (CAS 1138445-70-1)
- Ethyl 3-amino-3-(4-(benzyloxy)-3-bromophenyl)propanoate hydrochloride (CAS 502842-19-5)
- [2-fluoro-6-(methylsulfanyl)phenyl]methanamine (CAS 1516651-17-4)
- Gadoxetate Impurity 6 (CAS CATO-C4X-26186)
- Pitavastatin Impurity 114 (CAS CATO-C4X-1037114)
- Semaglutide Impurity 183 (CAS 159541-28-3)
Why CATO?
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