Fmoc-Tyr(tBu)-OH CAS 71989-38-3
| CAS No. | 71989-38-3 |
| Molecular Formula | C28H29NO5 |
| Molecular Weight | 459.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 459.53 g/mol gives Fmoc-Tyr(tBu)-OH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Fmoc-Tyr(tBu)-OH (CAS 71989-38-3), a certified reference material (molecular formula C28H29NO5, MW 459.53 g/mol) for analytical method development and quality control.
Based on its molecular formula C28H29NO5, Fmoc-Tyr(tBu)-OH contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 459.53 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.
CATO manufactures Fmoc-Tyr(tBu)-OH 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 | C28H29NO5 |
| Molecular Weight | 459.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- Fmoc-Tyr-OtBu (CAS 133852-23-0)
- (S)-Fmoc-Meta-Tyrosine O-Tert-Butyl Ether (CAS 204384-71-4)
- 3-(Fmoc-amino)-3-(3-tert-butoxyphenyl)propanoic Acid (CAS 372144-16-6)
- Fmoc-L-Nle(6-OBzl)-OH (CAS 625845-42-3)
- Fmoc-D-Tyr(tBu)-OH (CAS 118488-18-9)
- Fmoc-D-Glu(OBzl)-OH (CAS 104091-11-4)
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Recommended Standards
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- Pemafibrate Impurity 22 (CAS CATO-C4X-290322)
- Pemafibrate Impurity 71 (CAS CATO-C4X-290371)
- Propane-1,2-diyl dipropionate (CAS 10108-80-2)
- 4-Fluoro-3-methyl-2H-indazole (CAS 1145777-43-0)
- 5,11-Dihydroindolo[3,2-b]carbazole-6-carboxylic acid (CAS 744207-11-2)
- 1-(4-Methoxyphenyl)-4-{[(2,3,4,5,6-pentamethylphenyl)methyl]sulfanyl}butan-2-one (CAS 939893-50-2)
- 3-methylisoquinoline (CAS 1125-80-0)
- 3-((Dimethylamino)methyl)aniline dihydrochloride (CAS 697307-05-4)
- 2,4,6-Tri-tert-butyl pyrimidine 67490-21-5 2,4,6-Tri-tert-butylpyrimidine;2,4,6-Tri-tert-butylpyrimidine (CAS 67490-21-5)
- 1-(3-Bromo-5-fluorophenyl)-2-methylpropan-1-one (CAS 1147871-74-6)
- 1-(2-Bromoethyl)-2,3-dimethoxybenzene (CAS 709027-29-2)
- Semaglutide impurity 60 (CAS CATO-C4X-222660)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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