Fmoc-leu-bt CAS 1072840-99-3
| CAS No. | 1072840-99-3 |
| Molecular Formula | C27H26N4O3 |
| Molecular Weight | 454.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Fmoc-leu-bt is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Fmoc-leu-bt (CAS 1072840-99-3) is a high-purity analytical reference standard with the molecular formula C27H26N4O3 and a molecular weight of 454.52 g/mol.
Fmoc-leu-bt (C27H26N4O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Fmoc-leu-bt 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 | C27H26N4O3 |
| Molecular Weight | 454.52 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 4 |
Related Fmoc Standards
- Fmoc-N-Me-L-Trp(Me)-OH (CAS 2413047-17-1)
- Fmoc-Orn(Boc)-OH (CAS 109425-55-0)
- Fmoc-Thr(tBu)-Gly-OH (CAS 1456878-79-7)
- Fmoc-β-Ala-Ser(tBu)-OH (CAS CATO-CPTD788348)
- Fmoc-D-Orn(Boc)-OH (CAS 118476-89-4)
- Fmoc-Ala-Cys(Psi(Me,Me)pro)-OH (CAS 158531-43-2)
- Fmoc-Trp(For)-OH (CAS 152338-45-9)
- N-Fmoc-L-HomoPhe(2-F,3-Cl)-OH (CAS 2350021-49-5)
Recommended Standards
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- Cefazolin (CAS 25953-19-9)
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- (Z)-2-Octenal (CAS 20664-46-4)
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- 2-Bromo-4,6-bis(trifluoromethyl)benzaldehyde (CAS 1415130-39-0)
- 7-((2-Hydroxyethyl)amino)-8H-naphtho[2,3-a]phenoxazine-8,13(14H)-dione (CAS 648426-81-7)
- H-DL-Phe-OMe · HCl (CAS 5619-07-8)
- Bis(4-tert-butyl-2,6-dimethylphenyl) disulfide (CAS 68819-90-9)
- 5-(tert-Butyl)-4-cyclopropoxy-2-methylpyridine (CAS 1243411-34-8)
- 2-Thiophenesulfonamide, 4-amino-5-chloro- (CAS 905839-34-1)
- 3-Chloro-D-tyrosine (CAS 162599-96-4)
- Insulin degludec (CAS 844439-96-9)
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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