L-Glutamic acid gamma-(3-carboxy-4-nitroanilide) ammonium salt CAS 63699-78-5
| CAS No. | 63699-78-5 |
| Molecular Formula | C12H13N3O7 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
L-Glutamic acid gamma-(3-carboxy-4-nitroanilide) ammonium salt (CAS 63699-78-5), molecular formula C12H13N3O7H3N and molecular weight 328.28 g/mol, is a CATO reference standard with documented purity and traceability.
L-Glutamic acid gamma-(3-carboxy-4-nitroanilide) ammonium salt (C12H13N3O7H3N) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), L-Glutamic acid gamma-(3-carboxy-4-nitroanilide) ammonium salt meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H13N3O7 H3N |
| Molecular Weight | 328.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 4 |
Related L Standards
- 113873-67-9 L-Glutamic acid, L-alpha-aspartyl-L-leucyl-L-alpha-aspartyl-L-valyl-L-prolyl-L-isoleucyl-L-prolylglycyl-L-arginyl-L-phenylalanyl-L-alpha-aspartyl-L-arginyl-L-arginyl-L-valyl-L-seryl-L-valyl-L-alanyl-L-alanyl- (CAS 113873-67-9)
- D-Glutamic Acid- (CAS 1202063-54-4)
- D-Glutamic-13C5-15N acid (CAS 1202063-56-6)
- L-Glutamic Acid-15N, D9 (CAS 1217473-21-6)
- L-Glutamic Acid-13C5,15N, D9 (CAS 1217474-55-9)
- Glutamic acid impurity 6 (CAS 1308957-12-1)
- D-glutamic Acid Diethyl Ester (CAS 13107-55-6)
- Glutamic acid Impurity 1 (CAS 13726-52-8)
Recommended Standards
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- 2-Chloro-3-(3-methylphenyl)-1-propene (CAS 731772-16-0)
- 4-Bromo-2-isobutylpyridine (CAS 1563532-13-7)
- 1,3-Dioxolane-4-methanol, α,5-diethenyl-2,2-dimethyl-, (4S,5R)- (CAS 683276-43-9)
- 6-chloro-4-hydroxy-3-Quinolinecarbonitrile (CAS 61338-16-7)
- 1-[2-methyl-5-(trifluoromethyl)phenyl]hexahydropyrimidine-2,4-dione (CAS 1540978-57-1)
- Guanylyl-3-5-adenosine ammonium salt (CAS 103192-47-8)
- Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 330456-24-1)
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