Organolithium
Sigma Aldrich Methyl 3,5-dimethoxybenzoate
MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.
![Sigma Aldrich 2-Ethoxy-3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine](https://assets.fishersci.com/TFS-Assets/CCG/Sigma-Aldrich/product-images/e6f9b5fe-6902-43e7-ad13-0b2ce15557ea.jpg-250.jpg)
Sigma Aldrich 2-Ethoxy-3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine
MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.
Sigma Aldrich 3-(1,3-Thiazol-4-yl)aniline
MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.
Sigma Aldrich Tantalum(V) ethoxide
MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.
Strem, An Ascensus Company CAS# 18115-70-3. 50g. Lithium acetylacetonate, 98+%. MFCD00013496
CAS# 18115-70-3. 50g. Lithium acetylacetonate, 98+%. MFCD00013496. Molecular Weight: 106.05. Molecular Formula: LiCH3C(O)CHC(O)CH3. Color/form: white pwdr. Strem# 93-0361. http://www.strem.com/catalog/v/93-0361/
Medchemexpress LLC N-Fmoc-4-(tert-butoxycarbonylmethoxy)-L-phenylalanine | 181951-92-8 | >=98.0% | 517.57 | C30H31NO7 | 5 G
N-Fmoc-4-(tert-butoxycarbonylmethoxy)-L-phenylalanine is an Fmoc-protected phenylalanine derivative used as a building block in peptide synthesis and related organic chemistry applications.
- Purity ≥98.0% (NMR).
- Molecular weight 517.57 g/mol.
- Molecular formula C30H31NO7.
- Appearance: powder.
- Storage: powder -20°C for up to 3 years or 4°C for up to 2 years; in solvent -80°C for up to 6 months or -20°C for up to 1 month.
- CAS number 181951-92-8.
Medchemexpress LLC 1,2:3,4-di-O-isopropylidene-α-D-galactopyranose | 4064-06-6 | MFCD00063225 | 97.0% | 260.28 g·mol⁻¹ | C12H20O6 | 5 G
1,2:3,4-di-O-isopropylidene-α-D-galactopyranose is an isopropylidene-protected derivative of D-galactopyranose used as an intermediate and reagent in carbohydrate synthesis and organic chemistry. It protects vicinal hydroxyl groups to enable selective transformations, and is used in oligosaccharide synthesis, glycosylation studies, and other carbohydrate-based research.
- Provides isopropylidene protection of vicinal diols enabling selective reactions.
- Suitable as a synthetic intermediate for carbohydrate chemistry.
- Supplied at laboratory research purity for reproducible results (97.0%).
- Well-defined molecular formula and molecular weight for characterization.
- Manufacturer documents include datasheet, certificate of analysis, and safety data sheet.
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 Methyl N-(tert-butoxycarbonyl)-O-methyl-L-serinate | 134167-07-0 | MFCD18837831 | 97.0% | 233.26 g/mol | C10H19NO5 | 10 G
Methyl N-(tert-butoxycarbonyl)-O-methyl-L-serinate is a Boc-protected O-methyl derivative of L-serine used as an intermediate in peptide and organic synthesis. It is supplied as a solid with defined purity and storage recommendations.
- Boc-protected O-methyl L-serine methyl ester.
- Used as an intermediate in peptide and organic synthesis.
- Molecular formula: C10H19NO5.
- Molecular weight: 233.26 g/mol.
- Purity: 97.0%.
- Storage: pure form -20°C (3 years), 4°C (2 years); in solvent -80°C (6 months), -20°C (1 month).
- Available pack sizes: 250 mg, 500 mg, 1 g, 5 g, 10 g, 25 g, 50 g (quote).
Medchemexpress LLC Methyl 3-((tert-butoxycarbonyl)amino)-5-iodothiophene-2-carboxylate | 1007171-35-8 | 99.7% | 383.20 | 5 G
Methyl 3-((tert-butoxycarbonyl)amino)-5-iodothiophene-2-carboxylate is a drug intermediate for synthesis of various active compounds.
- High purity: 99.7%
- Molecular weight: 383.20
- CAS number: 1007171-35-8
- Appearance: Solid
- Color: Off-white to yellow
- Chemical formula: C11H14INO4S
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 Methyl 2,3-O-Isopropylidene-β-L-ribofuranoside | 20672-63-3 | 97.1% | 204.22 | 1 ML
Methyl 2,3-O-Isopropylidene-β-L-ribofuranoside is an enantiomer of Methyl 2,3-O-Isopropylidene-β-D-ribofuranoside and a derivative of L-ribose. It is intended for research use only.
- Purity of 97.10%
- Molecular weight of 204.22
- Chemical formula C9H16O5
- CAS number 20672-63-3
- Appearance as a colorless to light yellow liquid
- In vitro solubility of 100 mg/mL in DMSO
- Recommended storage at 4°C, protected from light, and under nitrogen
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 2-(bis(2-(tert-butoxy)-2-oxoethyl)amino)acetic acid | 171557-31-6 | 97.0% | 303.35 g/mol | C14H25NO6 | 5 G
2-(bis(2-(tert-butoxy)-2-oxoethyl)amino)acetic acid is a tert-butoxy-protected glycine derivative supplied as a solid reagent for research and analytical applications. It is commonly used as an intermediate in peptide synthesis and organic chemistry.
- Chemical formula C14H25NO6.
- Molecular weight 303.35 g/mol.
- Purity 97.0%.
- Physical form solid (powder).
- Available sizes 1 g, 5 g, 10 g, 50 g (quote).
- Storage powder: -20 °C (3 years) or 4 °C (2 years); in solvent: -80 °C (6 months) or -20 °C (1 month).
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.
- 1
- 2