Fmoc-D-Tyr(tBu)-OH CAS 118488-18-9
| CAS No. | 118488-18-9 |
| Molecular Formula | C28H29NO5 |
| Molecular Weight | 459.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Fmoc-D-Tyr(tBu)-OH 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.
Fmoc-D-Tyr(tBu)-OH (CAS 118488-18-9), molecular formula C28H29NO5 and molecular weight 459.53 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Fmoc-D-Tyr(tBu)-OH is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 459.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C28H29NO5 |
| Molecular Weight | 459.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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.) | 1990 |
| 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-Tyr(tBu)-OH (CAS 71989-38-3)
- Fmoc-D-Glu(OBzl)-OH (CAS 104091-11-4)
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- Fmoc-3-(2,2-dimethylbenzo[d][1,3]dioxol-5-yl)-L-alanine (CAS 852288-18-7)
Recommended Standards
- Methyl 2-(2-(3-(diethylamino)-1-oxo-1H-benzo[f]chromen-2-yl)ethyl)-6-methoxybenzoate (CAS 365542-83-2)
- Rosuvastatin Impurity 48 (CAS CATO-C4X-116948)
- Pemafibrate Impurity 22 (CAS CATO-C4X-290322)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-(tert-butoxy)phenyl)propanoic acid (CAS 205812-06-2)
- 5-bromo-2-(difluoromethyl)-1-methyl-1H-1,3-benzodiazole (CAS 1451215-69-2)
- 3-Phenyl-3,4-dihydro-2H-benzo[b][1,4]thiazine (CAS 24033-90-7)
- 4-(2-Fluorophenoxy)phenylboronic Acid (CAS 1402238-32-7)
- N,2-dimethyl-6-(pyrrolidin-3-yl)pyrimidin-4-amine dihydrochloride (CAS 1361116-32-6)
- 4-Chloro-2,6-dibromo-3-methylaniline (CAS 861559-78-6)
- 1-(4-Acetylphenyl)pyrrolidin-2-one (CAS 682351-65-1)
- 1,6-Dimethyl-1H-indole-3-carbaldehyde (CAS 202584-14-3)
- 2-ethyl-2-sulfanylbutan-1-ol (CAS 159982-42-0)
- (5-HYDROXY-1-METHYL-1H-PYRAZOL-4-YL)-(4-METHANESULFONYL-2,5-DIMETHYL-3-OXAZOL-2-YL-PHENYL)-METHANONE (CAS 1231549-68-0)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
Why CATO?
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