Z-O-tert-Butyl-L-tyrosine 4-nitrobenzyl ester CAS 16879-89-3
| CAS No. | 16879-89-3 |
| Molecular Formula | C28H30N2O7 |
| Molecular Weight | 506.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Z-O-tert-Butyl-L-tyrosine 4-nitrobenzyl ester (C28H30N2O7) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 506.55 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Z-O-tert-Butyl-L-tyrosine 4-nitrobenzyl ester (CAS 16879-89-3), molecular formula C28H30N2O7 and molecular weight 506.55 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Z-O-tert-Butyl-L-tyrosine 4-nitrobenzyl ester 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 | C28H30N2O7 |
| Molecular Weight | 506.55 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 2 |
Recommended Standards
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- 3,5-dinitro-N-(pyridin-3-ylmethyl)benzamide (CAS 58624-47-8)
- Methyl 3-(piperidin-3-yl)-1H-indole-6-carboxylate (CAS 1260766-36-6)
- (S)-1-(4-Chlorobenzyl)-5-oxopyrrolidine-2-carboxylic acid (CAS 59749-22-3)
- N-(5-(3,5-Difluorobenzoyl)-1-trityl-1H-indazol-3-yl)-4-(4-methylpiperazin-1-yl)-2-nitrobenzamide (CAS 1108745-20-5)
- (E)-Methyl 4,4,4-trifluorobut-2-enoate (CAS 85694-31-1)
- 4-(Aminomethyl)-6-(difluoromethyl)-3-iodopicolinaldehyde (CAS 1805424-08-1)
- Peptide 441 (CAS CATO-CPTD788441)
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