Fmoc-S-3-amino-4-(4-tert-butylphenyl)-butyric acid CAS 403661-86-9
| CAS No. | 403661-86-9 |
| Molecular Formula | C29H31NO4 |
| Molecular Weight | 457.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 457.56 g/mol gives Fmoc-S-3-amino-4-(4-tert-butylphenyl)-butyric acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Fmoc-S-3-amino-4-(4-tert-butylphenyl)-butyric acid (CAS 403661-86-9) is a high-purity analytical reference standard with the molecular formula C29H31NO4 and a molecular weight of 457.56 g/mol.
Fmoc-S-3-amino-4-(4-tert-butylphenyl)-butyric acid (C29H31NO4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Fmoc-S-3-amino-4-(4-tert-butylphenyl)-butyric acid 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 | C29H31NO4 |
| Molecular Weight | 457.56 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.) | 2025 |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- Fmoc-R-3-amino-4-(4-tert-butylphenyl)-butyric acid (CAS 401916-49-2)
- Fmoc-(R)-3-Amino-4-(3-benzothienyl)-butyric acid (CAS 269396-51-2)
- Fmoc-Cys(Boc-methyl)-OH (CAS 269730-62-3)
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- Fmoc-5-methoxy-L-tryptophan (CAS 1219184-52-7)
- Fmoc-β-Ala-D-Tic-OH (CAS CATO-CPTD788493)
- Fmoc-3,4-dichloro-L-phenylalanine, 98% (CAS 17766-59-5)
Recommended Standards
- NH-bis-PEG5 (CAS 63721-06-2)
- 1-Hydroxy-4-((4-(nonyloxy)phenyl)amino)anthracene-9,10-dione (CAS 71334-46-8)
- Ketoprofen Impurity 89 (CAS CATO-C4X-147189)
- Acolbifene (CAS 182167-02-8)
- Dechlorane Plus Syn (CAS 135821-03-3)
- 3-(4-Fluorophenyl)bicyclo[1.1.1]pentan-1-amine hydrobromide (CAS 2306270-96-0)
- N-(3-Hydroxy-5-isopropylphenyl)methanesulfonamide (CAS 1243373-37-6)
- Methyl 2-bromo-1H-imidazole-5-carboxylate (CAS 1379311-82-6)
- Methyl 3-[(1,3-benzoxazol-2-yl)amino]propanoate (CAS 931098-35-0)
- 2-(6-Iodobenzofuran-3-yl)propan-1-amine hydrochloride (CAS 1363404-89-0)
- n-[1-(2-tert-butyl-4-methyl-1,3-thiazol-5-yl)ethylidene]hydroxylamine (CAS 1087792-29-7)
- (5S)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl 5-(4-amino-5-fluoro-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolane-2-carboxylate (CAS 1704050-76-9)
- Trifluoroacetic acid, silver salt Silver mono(trifluoroacetate) Silver perfluoroacetate Silver trifluoroacetate Silver(1+) 2,2,2-trifluoroacetate Silver(1+) trifluoroacetate Silver(I) trifluoroacetate Siver(I) trifluoroacetate Trifluoroacetic acid silver(1+) salt 2966-50-9 (CAS 2966-50-9)
- C-Peptide (human) (CAS 33017-11-7)
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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