Glutamic acid Impurity 1 CAS 13726-52-8
| CAS No. | 13726-52-8 |
| Molecular Formula | C16H22N2O5 |
| Molecular Weight | 322.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Glutamic acid Impurity 1 (CAS 13726-52-8) is a certified pharmaceutical impurity reference standard with the molecular formula C16H22N2O5 and a molecular weight of 322.36 g/mol.
Structurally, Glutamic acid Impurity 1 (C16H22N2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 322.36 g/mol, it falls into the moderately-high-molecular-weight range. 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 quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Glutamic acid Impurity 1 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H22N2O5 |
| Molecular Weight | 322.36 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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.) | 1960 |
| Nitrogen Atoms | 2 |
Related Glutamic Standards
- Glutamic Acid Impurity 4 (CAS 1417526-05-6)
- Glutamic acid Impurity 2 (CAS 51865-66-8)
- Glutamic acid Impurity 3 (CAS CATO-C4X-28623)
- Glutamic acid Impurity 10 (CAS 67278-32-4)
- Glutamic acid impurity 8 (CAS 67278-37-9)
- L-Glutamic acid, 4-(2-naphthalenylmethyl)-, (4R)- (CAS 207497-67-4)
- Glutamic acid Impurity 4 (CAS 57444-70-9)
- Glutamic acid impurity 5 (CAS 87039-96-1)
Recommended Standards
- Emedastine Impurity 48 (CAS CATO-C4X-226748)
- Kebuzone (CAS 853-34-9)
- Troxipide Impurity 8 (CAS CATO-C4X-21488)
- Nonanal-DNPH (CAS 2348-19-8)
- Fosfomycin Impurity 58 (CAS CATO-C4X-131658)
- Amlodipine Impurity 43 (CAS CATO-C4X-109543)
- Atropine Impurity 42 (CAS 13269-35-7)
- Methyl 3-acetylisoxazole-5-carboxylate (CAS 359689-20-6)
- 1-((2-(4-Bromophenethyl)-1,3-dioxolan-2-yl)methyl)-1H-imidazole (CAS 940061-39-2)
- 6-Bromochromone-2-carboxylic acid, 97% (CAS 51484-06-1)
- (3-(5-Nitropyrimidin-2-yl)phenyl)methanol (CAS 1349718-10-0)
- 2-(Phenylsulfanyl)pyrimidine-5-carbonitrile (CAS 400082-63-5)
- 3-Cyclobutoxypropan-1-amine (CAS 1247690-28-3)
- Tau Peptide (273-284) trifluoroacetate salt (CAS 1663490-91-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com