A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
Pre-loaded resins for solid phase peptide and organic synthesis. Synonyms: Fmoc-D-Cys(Acm)-Wang resin.
Fmoc-S-acetamidomethyl-D-cysteine 98+% (HPLC)
Fmoc-S-acetamidomethyl-D-cysteine 98+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 1g, 5g, 25g. US Biological Life Sciences.
Worldwide
Fmoc-S-acetamidomethyl-D-penicillamine
Fmoc-S-acetamidomethyl-D-penicillamine is a derivative of D-Penicillamine, which is a penicillin metabolite used in the treatment of Wilson's disease, Cystinuria, Scleroderma and arsenic poisoning. Synonyms: Fmoc-D-Pen(Acm)-OH; Fmoc-S-acetamidomethyl-β,β-dimethyl-D-Cys-OH; N-(fluorenylmethoxycarbonyl)-S-acetamidomethyl-D-penicillamine; (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-((acetamidomethyl)thio)-3-methylbutanoic acid; 3-[(Acetamidomethyl)sulfanyl]-N-{[(9H-fluoren-9-yl)methoxy]carbonyl}-D-valine. Grade: ≥95%. CAS No. 201531-77-3. Molecular formula: C23H26N2O5S. Mole weight: 442.53.
Fmoc-S-acetamidomethyl-D-penicillamine
Fmoc-S-acetamidomethyl-D-penicillamine. Group: Biochemicals. Alternative Names: Fmoc-D-Pen(Acm)-OH; Fmoc-S-acetamidomethyl-b,b-dimethyl-D-Cys-OH. Grades: Highly Purified. CAS No. 201531-77-3. Pack Sizes: 500mg, 1g, 2g, 5g. US Biological Life Sciences.
Worldwide
Fmoc-S-acetamidomethyl-D-penicillamine 99+%
Fmoc-S-acetamidomethyl-D-penicillamine 99+%. Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 250mg, 1g, 5g. US Biological Life Sciences.
Worldwide
Fmoc-S-acetamidomethyl-L-cysteine
Fmoc-S-acetamidomethyl-L-cysteine. Group: Biochemicals. Alternative Names: Fmoc-L-Cys(Acm)-OH. Grades: Highly Purified. CAS No. 86060-81-3. Pack Sizes: 10g, 25g, 50g, 100g, 250g. US Biological Life Sciences.
Fmoc-S-acetamidomethyl-L-homocysteine 98+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 250mg, 1g, 5g. US Biological Life Sciences.
Worldwide
Fmoc-S-acetamidomethyl-L-penicillamine
Fmoc-S-acetamidomethyl-L-penicillamine is a derivative of D-Penicillamine, which is a penicillin metabolite used in the treatment of Wilson's disease, Cystinuria, Scleroderma and arsenic poisoning. Synonyms: Fmoc-L-Pen(Acm)-OH; Fmoc-S-acetamidomethyl-β,β-dimethyl-L-Cys-OH; Fmoc-Pen(Acm)-OH; N-(fluorenylmethoxycarbonyl)-S-acetamidomethyl-L-penicillamine; (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-((acetamidomethyl)thio)-3-methylbutanoic acid; Fmoc-Cys(Me2)(Acm)-OH; 3-[(Acetamidomethyl)sulfanyl]-N-{[(9H-fluoren-9-yl)methoxy]carbonyl}-L-valine. Grade: ≥95%. CAS No. 201531-76-2. Molecular formula: C23H26N2O5S. Mole weight: 442.53.
Fmoc-S-acetamidomethyl-L-penicillamine
Fmoc-S-acetamidomethyl-L-penicillamine. Group: Biochemicals. Alternative Names: Fmoc-L-Pen(Acm)-OH; Fmoc-S-acetamidomethyl-b,b-dimethyl-L-Cys-OH. Grades: Highly Purified. CAS No. 201531-76-2. Pack Sizes: 250mg, 500mg, 1g, 2g, 5g. US Biological Life Sciences.
Fmoc-Sar-Sar-OH is a peptide building block used in solid-phase peptide synthesis. It features an Fmoc (Fluorenylmethyloxycarbonyl) protective group on the N-terminus, which shields the amino group during peptide assembly. The core structure includes two Sar (Sarcosine) residues, a small, non-polar amino acid with a methyl group replacing one hydrogen, contributing to the peptide's flexibility and hydrophobic interactions. The -OH at the C-terminus indicates a free carboxyl group, allowing for further coupling with other amino acids. This compound is utilized to introduce specific dipeptide sequences into larger peptides, influencing their structure and function. Synonyms: Fmoc-Sar-Sar; N-(Fluorenylmethoxycarbonyl)-sarcosyl-sarcosine; N-(N-(((9H-Fluoren-9-yl)methoxy)carbonyl)-N-methylglycyl)-N-methylglycine; 2-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-N-methylacetamido)acetic acid; N-Fmoc-sarcosyl-sarcosine. Grade: ≥95% by HPLC. CAS No. 2313534-20-0. Molecular formula: C21H22N2O5. Mole weight: 382.42.
Fmoc-Sar-Sar-Sar-OH
Fmoc-Sar-Sar-Sar-OH is a protected tripeptide used in peptide synthesis. The Fmoc (9-Fluorenylmethoxycarbonyl) group protects the N-terminus of the first sarcosine (Sar) residue, preventing it from reacting during synthesis. Sarcosine is a non-natural amino acid known for its small size and flexibility. The remaining Sar residues in the sequence are also sarcosines, with all the side chains protected to avoid unwanted reactions. The -OH at the C-terminus indicates a free carboxyl group, allowing for further peptide coupling or modifications. This peptide is utilized for incorporating multiple sarcosine residues into peptides, with specific protections to ensure controlled and efficient synthesis. Synonyms: N-(Fluorenylmethoxycarbonyl)-sarcosyl-sarcosyl-sarcosine; 1-(9H-Fluoren-9-yl)-4,7,10-trimethyl-3,6,9-trioxo-2-oxa-4,7,10-triazadodecan-12-oic acid; Fmoc-Sarcosyl-Sarcosyl-Sarcosine; Fmoc-Sar-Sar-Sar; N-Fmoc-Sarcosyl-Sarcosyl-Sarcosine; Fmoc-tris-Sarcosine; N-alpha-(9-Fluorenylmethyloxycarbonyl)-sarcosinyl-sarcosinyl-sarcosine. Grade: ≥95%. CAS No. 2749824-37-9. Molecular formula: C24H27N3O6. Mole weight: 453.49.
Fmoc-Sar-Sar-Sar-Sar-OH
Fmoc-Sar-Sar-Sar-Sar-OH is a protected tetrapeptide consisting of four sarcosine (Sar) residues, a non-chiral derivative of glycine with a methyl group attached to the nitrogen atom. The Fmoc (Fluorenylmethyloxycarbonyl) group protects the N-terminus of the first sarcosine residue, which can be removed under mild basic conditions during peptide synthesis. The C-terminus of the last sarcosine residue is free, indicated by -OH, allowing it to participate in further coupling reactions or modifications. This tetrapeptide can be used to introduce flexibility and alter the conformational properties of peptide chains while maintaining the overall sequence's chemical stability. Synonyms: 1-(9H-Fluoren-9-yl)-4,7,10,13-tetramethyl-3,6,9,12-tetraoxo-2-oxa-4,7,10,13-tetraazapentadecan-15-oic acid; Fmoc-Sar-Sar-Sar-Sar. Grade: ≥95%. Molecular formula: C27H32N4O7. Mole weight: 524.57.
Fmoc-S-benzyl-D-penicillamine. Group: Biochemicals. Alternative Names: Fmoc-D-Pen(Bzl)-OH; Fmoc-S-benzyl-b,b-dimethyl-D-Cys-OH. Grades: Highly Purified. CAS No. 139551-73-8. Pack Sizes: 250mg, 500mg, 1g, 2g, 5g. US Biological Life Sciences.
Worldwide
Fmoc-S-benzyl-D-penicillamine
Fmoc-S-benzyl-D-penicillamine is a derivative of D-Penicillamine, which is a penicillin metabolite used in the treatment of Wilson's disease, Cystinuria, Scleroderma and arsenic poisoning. Synonyms: Fmoc-D-Pen(Bzl)-OH; Fmoc-S-benzyl-β,β-dimethyl-D-Cys-OH; Fmoc-D-Pen(Bn)-OH; (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(benzylthio)-3-methylbutanoic acid; 3-(Benzylsulfanyl)-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-D-valine; N-α-(9-Fluorenylmethoxycarbonyl)-S-benzyl-D-penicillamine. Grade: ≥95%. CAS No. 139551-73-8. Molecular formula: C27H27NO4S. Mole weight: 461.57.
Fmoc-S-benzyl-D-penicillamine 99+%
Fmoc-S-benzyl-D-penicillamine 99+%. Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 1g, 5g. US Biological Life Sciences.
Fmoc-S-benzyl-L-cysteine 99+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 5g, 25g, 100g. US Biological Life Sciences.
Worldwide
Fmoc-S-Boc-3-aminopropyl-L-cysteine
Fmoc-S-Boc-3-aminopropyl-L-cysteine. Group: Biochemicals. Alternative Names: Fmoc-L-Cys(Boc-3-aminopropyl)-OH. Grades: Highly Purified. CAS No. 173963-91-2. Pack Sizes: 100mg, 250mg, 500mg, 1g, 2g. US Biological Life Sciences.
Worldwide
Fmoc-S-Boc-3-aminopropyl-L-cysteine
This unusal amino acid derivative can be used as lysine or arginine mimetic. Synonyms: Fmoc-L-Cys(Boc-3-aminopropyl)-OH; (2R)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-[3-[(2-methylpropan-2-yl)oxycarbonylamino]propylsulfanyl]propanoic acid. Grade: ≥ 98% (HPLC). CAS No. 173963-91-2. Molecular formula: C26H32N2O6S. Mole weight: 500.62.
Fmoc-S-Boc-3-aminopropyl-L-cysteine 98+% (HPLC)
Fmoc-S-Boc-3-aminopropyl-L-cysteine 98+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. CAS No. 173963-91-2. Pack Sizes: 100mg, 250mg, 1g, 5g. US Biological Life Sciences.
The Dpm group has increased stability compared to Trt, enabling selective removal of Mtt groups on the solid phase with dilute TFA without loss of Dpm groups. Furthermore, the Dpm group is removed by treatment with 95% TFA cleavage cocktails. Racemization during carboxyl activation is lower with this derivative than with Fmoc-Cys(Trt)-OH. Uses: Fmoc solid-phase peptide synthesis. Additional or Alternative Names: Fmoc-Cys(Dpm)-OH, N-α-Fmoc-S-diphenylmethyl-L-cysteine. Product Category: Amino Acids. CAS No. 247595-29-5. Molecular formula: C31H27NO4S. Mole weight: 509.6. Product ID: ACM247595295-1. Alfa Chemistry ISO 9001:2015 Certified.
Fmoc-Sec(pMeOBzl)-OH
Building block for the introduction of selenocysteine during Fmoc SPPS. Selenocysteine derivatives can undergo enantiomerization during coupling and can form dehydroalanine and β-piperidinylalanine containing side products during subsequent chain elongation. Therefore, activation methods, such as HBTU or PyBOP which involve the addition of a tertiary, base should be avoided for addition of the Sec and all subsequent residues. Cleavage and side-chain deprotection of Sec-containing peptides can be effected using tFA-m-cresol-thioanisole-EDT-water (80:5:5:5:5) or TFA-water-DCM-TIS (89:5:51) at 4 °C. As the Se-pMeOBzl bond is stable to TFA, these methods result in the formation of the corresponding Sev(pMeOBzl) peptide. Peptides containing two Sec(pMeOBzl) residues can be oxidized directly to the corresponding selenocystinyl peptides by treatment with 5-10% DMSO in TFA. Uses: Peptide synthesis. Additional or Alternative Names: Fmoc-Sec(pMeOBzl)-OH, Fmoc-Sec(Mob)-OH, Fmoc-S-4-methoxybenzyl selenocysteine. Product Category: Amino Acids. CAS No. 150308-80-8. Molecular formula: C26H25NO5Se. Mole weight: 510.44. Product ID: ACM150308808. Alfa Chemistry ISO 9001:2015 Certified.
Fmoc-selenomethionine can be introduced under standard conditions. Any selenoxide formed during synthesis can be easily reduced back to selenide by treatment with β-mercaptoethanol. Introduction of selenium can help facilitate solid phase and solution structural determination and the study of peptide-protein interactions. Uses: Peptide synthesis. Additional or Alternative Names: Fmoc-selenomethionine, N-Fmoc-L-amino-4-(methylselanyl)butanoic acid. Product Category: Amino Acids. CAS No. 1217852-49-7. Mole weight: 418.35. Product ID: ACM1217852497-1. Alfa Chemistry ISO 9001:2015 Certified.
The O-glycosidic linkage and the O-acetyl protection in this building block is stable to both piperidine and TFA , making it completely compatible with standard protocols in Fmoc solid phase peptide synthesis. Removal of the acetyl protecting groups is best carried out by treatment of the peptidyl resin with methanolic ammonia prior to cleavage. Uses: Peptide synthesis. Additional or Alternative Names: Fmoc-Ser(Ac3AcNH-α-Gal)-OH, N-α-Fmoc-O-(2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-α-D-galactopyranosyl)-L-serine. Product Category: Amino Acids. CAS No. 120173-57-1. Mole weight: 656.63. Product ID: ACM120173571-1. Alfa Chemistry ISO 9001:2015 Certified.
Fmoc-Ser(Ac3AcNH-α-Glc)-OH
Fmoc-Ser(Ac3AcNH-α-Glc)-OH is a glycosylated serine derivative used in the synthesis of glycopeptides. The Fmoc group protects the amino group of serine, while the attached α-glucose molecule, modified with three acetyl groups and an N-acetyl group, provides a specific glycosylation pattern. This compound is valuable in biochemical and pharmaceutical research for creating glycosylated peptides, which are important for studying protein-carbohydrate interactions, enhancing peptide stability, and improving therapeutic properties. Synonyms: N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-O-[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-α-D-glucopyranosyl]-L-serine; Fmoc-Ser(GlcNAc(Ac)-α-D)-OH; (Fmoc-L-Ser(α-D-GlcNAc(Ac)3)-OH); N-Fmoc-O-(2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-α-D-glucopyranosyl)-L-serine; N-(((9H-fluoren-9-yl)methoxy)carbonyl)-O-((2S,3R,4R,5S,6R)-3-acetamido-4,5-diacetoxy-6-(acetoxymethyl)tetrahydro-2H-pyran-2-yl)-L-serine. Grade: ≥95%. CAS No. 172325-15-4. Molecular formula: C32H36N2O13. Mole weight: 656.64.
Fmoc-Ser(Ac3AcNH-ß-Glc)-OH
The O-glycosidic linkage and the O-acetyl protection in this building block are stable to both piperidine and TFA, making it completely compatible with standard protocols in Fmoc solid phase peptide synthesis. Removal of the acetyl-protecting groups is best carried out by treatment of the peptidyl resin with methanolic ammonia prior to cleavage. Uses: Peptide synthesis. Additional or Alternative Names: Fmoc-Ser(Ac3AcNH-ß-Glc)-OH, N-α-Fmoc-O-(2-Acetamido-2-deoxy-tri-O-acetyl-β-D-glucopyranosyl)-L-serine. Product Category: Amino Acids. CAS No. 160067-63-0. Molecular formula: C32H36N2O13. Mole weight: 656.63. Product ID: ACM160067630. Alfa Chemistry ISO 9001:2015 Certified.
Fmoc-ser(bzl)-oh. Uses: Designed for use in research and industrial production. Additional or Alternative Names: N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-serine phenylmethyl ester;Fmoc-Ser(Bzl)-OH. Product Category: Heterocyclic Organic Compound. CAS No. 73724-46-6. Molecular formula: C25H23NO5. Mole weight: 417.45. Product ID: ACM73724466. Alfa Chemistry ISO 9001:2015 Certified.