Organolithium
Medchemexpress LLC S -2- 2- tert-Buto 25g
(S)-2-(2-((tert-Butoxycarbonyl)amino)-3-(1-trityl-1H-imidazol-4-yl)propanamido)-2-methylpropanoic acid (Boc-his(trt)-aib-ohol) is a drug intermediate for synthesis of various active compounds
Medchemexpress LLC Methyl N-(tert-butoxycarbonyl)-O-methyl-L-serinate | 134167-07-0 | MFCD18837831 | >95.0% | 233.26 g/mol | C10H19NO5 | 5 G
Methyl N-(tert-butoxycarbonyl)-O-methyl-L-serinate is an N-Boc protected serine methyl ester used as an intermediate and building block in organic synthesis and biochemical research. It is supplied for research use only.
- N-Boc protected serine derivative useful as a building block for peptide and small-molecule synthesis.
- O-methylated side chain enables selective functionalization of the serine hydroxyl position.
- Available in multiple pack sizes for lab-scale synthesis and method development.
- Stable under standard laboratory storage conditions; store as recommended on safety documentation.
Medchemexpress LLC S -2- 2- tert-Buto 250mg
(S)-2-(2-((tert-Butoxycarbonyl)amino)-3-(1-trityl-1H-imidazol-4-yl)propanamido)-2-methylpropanoic acid (Boc-his(trt)-aib-ohol) is a drug intermediate for synthesis of various active compounds
Medchemexpress LLC S -2- 2- tert-Buto 1g
(S)-2-(2-((tert-Butoxycarbonyl)amino)-3-(1-trityl-1H-imidazol-4-yl)propanamido)-2-methylpropanoic acid (Boc-his(trt)-aib-ohol) is a drug intermediate for synthesis of various active compounds
Medchemexpress LLC N-Fmoc-4-(tert-butoxycarbonylmethoxy)-L-phenylalanine | 181951-92-8 | MFCD07781259 | >98.0% | 517.57 g/mol | C30H31NO7 | 1 G
N-Fmoc-4-(tert-butoxycarbonylmethoxy)-L-phenylalanine is an Fmoc-protected phenylalanine derivative used as a protected amino acid building block for peptide synthesis and chemical research. It features a tert-butoxycarbonyl-protected methoxy substituent at the 4-position of the aromatic ring and is supplied as a solid with formula C30H31NO7 and molecular weight 517.57 g/mol. Typical purity is ≥98.0% and recommended storage is powder: -20°C (up to 3 years) or 4°C (up to 2 years); in solvent: -80°C (up to 6 months) or -20°C (up to 1 month).
- Fmoc-protected amino acid suitable for solid-phase peptide synthesis.
- Boc-protected methoxy group at the 4-position of the aromatic ring.
- Chemical formula C30H31NO7 and molecular weight 517.57 g/mol.
- Purity ≥98.0% by 1H NMR.
- Supplied as a solid; follow recommended powder and solvent storage conditions.
- Intended for research use only.
Medchemexpress LLC 1,2:3,5-di-O-isopropylidene-alpha-D-xylofuranose | 20881-04-3 | MFCD03002332 | 98.9% | 230.26 g/mol | C11H18O5 | 1 G
1,2:3,5-Di-O-isopropylidene-α-D-xylofuranose is a protected sugar derivative used as an intermediate and reagent in organic synthesis and carbohydrate chemistry. It is supplied as a white to off-white solid suitable for laboratory research and synthesis applications.
- Useful building block in carbohydrate and nucleoside synthesis.
- Acetal protection (isopropylidene) improves stability and chemoselectivity.
- High purity (98.9%) for reliable reaction performance.
- White to off-white solid, easy to handle and store.
- Molecular formula C11H18O5; CAS number 20881-04-3.
- Available in small research pack sizes, e.g. 1 g.
Medchemexpress LLC N-Fmoc-4-(tert-butoxycarbonylmethoxy)-L-phenylalanine | 181951-92-8 | MFCD07781259 | ≥98.0% | 517.57 | C30H31NO7 | 250 MG
N-Fmoc-4-(tert-butoxycarbonylmethoxy)-L-phenylalanine is an Fmoc-protected derivative of L-phenylalanine used as a building block in peptide synthesis and related peptide chemistry applications. It features an N-Fmoc protecting group on the amine and a tert-butoxycarbonylmethoxy protecting group at the 4-position of the phenyl ring, supplied as a solid powder with reported high purity for synthetic use.
- Fmoc-protected amino acid for solid-phase peptide synthesis.
- Tert-butoxycarbonylmethoxy group at the 4-position provides orthogonal protection.
- Molecular formula: C30H31NO7.
- Molecular weight approximately 517.6 daltons.
- Purity by NMR: ≥98.0%.
- Solid powder form; store at -20°C for long-term stability.
Medchemexpress LLC (S)-2-(2-((tert-butoxycarbonyl)amino)propanamido)acetic acid | 28782-78-7 | MFCD00235759 | 97.0% | 246.26 g/mol | C10H18N2O5 | 5 G
(S)-2-(2-((tert-Butoxycarbonyl)amino)propanamido)acetic acid is a Boc-protected glycine derivative used as a peptide fragment and building block in medicinal chemistry and peptide synthesis. It is supplied as a white to off-white solid with formula C10H18N2O5 and molecular weight 246.26 g/mol; CAS 28782-78-7. Typical applications include incorporation into peptides, synthetic modification, and structure-activity studies.
- Boc-protected amino acid derivative for incorporation into peptides.
- High purity suitable for research use (97.0%).
- Solid, white to off-white form for straightforward handling.
- Stable under recommended storage conditions to preserve integrity.
- Useful as a building block in medicinal chemistry and peptide synthesis.
Medchemexpress LLC 1,2:3,4-di-O-isopropylidene-α-D-galactopyranose | 4064-06-6 | MFCD00063225 | 97.0% | 260.28 g/mol | C12H20O6 | 100 G
1,2:3,4-Di-O-isopropylidene-α-D-galactopyranose is a protected D-galactopyranose derivative (diacetonide) used as a carbohydrate building block and biochemical reagent. The acetal-protected sugar acts as a stable intermediate for selective transformations and glycoconjugate assembly in research and synthetic workflows.
- Protected sugar acetal suitable for selective functionalization.
- Used as a synthetic intermediate in carbohydrate chemistry.
- Compatible with common organic reaction and deprotection conditions.
- Provided with analytical data for quality verification.
- Available in multiple pack sizes for research applications.