L-Tryptophan-d5 CAS 62595-11-3
| CAS No. | 62595-11-3 |
| Molecular Formula | - |
| Molecular Weight | 209.26 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 L-Tryptophan-d5.
CATO supplies L-Tryptophan-d5 (CAS 62595-11-3), a certified reference material (molecular formula C11H7D5N2O2, MW 209.26 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H7D5N2O2, L-Tryptophan-d5 contains deuterium isotope labeling, an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 209.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures L-Tryptophan-d5 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 | C11H7D5N2O2 |
| Molecular Weight | 209.26 g/mol |
| Appearance | Pale yellow to 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) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 2 |
Related L Standards
- D-Tryptophan-2′,4′,5′,6′,7′-d5 (indole-d5) (CAS 1202359-57-6)
- Tryptophan Impurity 14 (CAS 343-65-7)
- Tryptophan EP Impurity C (CAS 2922-83-0)
- DL-Tryptophan-2,3,3-d3 (CAS 340257-61-6)
- DL-Tryptophan-d8 (CAS 1233395-85-1)
- L-Tryptophan-15N2 (CAS 204634-20-8)
- DL-Tryptophan (CAS 54-12-6)
- L-Tryptophan (CAS 73-22-3)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com