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L-Phenylalanine,4-[[[(1,1-dimethylethoxy)carbonyl]oxy]methyl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-. Uses: Designed for use in research and industrial production. Additional or Alternative Names: FMOC-L-PHE(4-CH2-O-BOC). Product Category: Heterocyclic Organic Compound. CAS No. 205181-69-7. Molecular formula: C30H31NO7. Mole weight: 517.57. Purity: 0.96. IUPACName: (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-[4-[(2-methylpropan-2-yl)oxycarbonyloxymethyl]phenyl]propanoic acid. Canonical SMILES: CC(C)(C)OC(=O)OCC1=CC=C(C=C1)CC(C(=O)O)NC(=O)OCC2C3=CC=CC=C3C4=CC=CC=C24. Product ID: ACM205181697. Alfa Chemistry ISO 9001:2015 Certified.
L-Phenylalanine,4-amino-N-[(1,1-dimethylethoxy)carbonyl]-3,5-diiodo-. Uses: Designed for use in research and industrial production. Additional or Alternative Names: BOC-4-AMINO-3,5-DIIODO-L-PHENYLALANINE;BOC-PHE(4-NH2-3,5-I2)-OH;BOC-PHE(3,5-DII,4-NH2)-OH;N-ALPHA-T-BUTOXYCARBONYL-4-AMINO-3,5-DIIODO-L-PHENYLALANINE;Boc-4-amino-3,5-diiodo-Phe-OH;Bov-Phe(3,5-Dii,4-NH2)-OH. Product Category: Heterocyclic Organic Compound. CAS No. 67230-47-1. Molecular formula: C14H18I2N2O4. Mole weight: 532.11. Purity: 0.96. IUPACName: (2S)-3-(4-amino-3,5-diiodophenyl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoicacid. Canonical SMILES: CC(C)(C)OC(=O)NC(CC1=CC(=C(C(=C1)I)N)I)C(=O)O. Product ID: ACM67230471. Alfa Chemistry ISO 9001:2015 Certified.
6,7-Dimethyl-5,6,7,8-tetrahydropterine hydrochloride is a synthetic reduced pterin cofactor for nitric oxide synthetase, and for phenylalanine, tyrosine, and tryptophan hydroxylases; less active than the natural cofactor, tetrahydrobiopterin (BH4). Applications: A synthetic reduced pterin cofactor. Group: Coenzymes. Synonyms: DMPH4; 2-Amino-6,7-dimethyl-4-hydroxy-5,6,7,8-tetrahydropteridine. CAS No. 945-43-7. Purity: ≥95%. Mole weight: 231.68. Appearance: Powder. Form: Solid. DMPH4; 2-Amino-6,7-dimethyl-4-hydroxy-5,6,7,8-tetrahydropteridine; 6,7-Dimethyl-5,6,7,8-tetrahydropterine hydrochloride; 945-43-7. Cat No: COEC-094.
Auristatin F
Auristatin F, a synthetic analog of dolastatin 10, is a cytotoxic tubulin modifier with potent and selective antitumor activity. It is an MMAF analog and cytotoxin in Antibody-drug conjugates. Uses: Adcs cytotoxin. Synonyms: N,N-Dimethyl-L-valyl-L-valyl-(3R,4S,5S)-3-methoxy-5-methyl-4-(methylamino)heptanoyl-(αR,βR,2S)-β-methoxy-α-methyl-2-pyrrolidinepropanoyl-L-phenylalanine; L-Valinamide, N,N-dimethyl-L-valyl-N-[(1S,2R)-4-[(2S)-2-[(1R,2R)-3-[[(1S)-1-carboxy-2-phenylethyl]amino]-1-methoxy-2-methyl-3-oxopropyl]-1-pyrrolidinyl]-2-methoxy-1-[(1S)-1-methylpropyl]-4-oxobutyl]-N-methyl-; N,N-Dimethyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(1S)-1-carboxy-2-phenylethyl]amino}-1-methoxy-2-methyl-3-oxopropyl]-1-pyrrolidinyl}-3-methoxy-5-methyl-1-oxo-4-heptanyl]-N-methyl-L-valinamide. Grades: ≥97% by HPLC. CAS No. 163768-50-1. Molecular formula: C40H67N5O8. Mole weight: 745.99.
Boc-2-fluoro-D-phenylalanine is a useful research chemical for organic synthesis and other chemical processes. Synonyms: Boc-D-Phe(2-F)-OH; Boc-o-fluoro-D-Phe-OH; (R)-Boc-2-amino-3-(2-fluorophenyl)propionic acid; Boc-D-2-fluorophenylalanine; (R)-2-((tert-Butoxycarbonyl)amino)-3-(2-fluorophenyl)propanoic acid; Boc-Phe(2-F)-OH; N-(tert-butoxycarbonyl)-2-fluoro-D-phenylalanine; D-Phenylalanine, N-[(1,1-dimethylethoxy)carbonyl]-2-fluoro-; (R)-2-[(TERT-BUTOXYCARBONYL)AMINO]-3-(2-FLUOROPHENYL)PROPANOIC ACID; (2R)-3-(2-fluorophenyl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid. Grades: ≥ 99% (HPLC). CAS No. 114873-10-8. Molecular formula: C14H18FNO4. Mole weight: 283.30.
Boc-3,4-dichloro-D-phenylalanine is used to prepare fluorinated β-aminoacyl 1,2,4-triazolo[4,3-a]piperazine amides as dipeptidyl peptidase IV inhibitors and antidiabetic agents. It is also used in the synthesis of N-[(R,R)-(E)-1-(3,4-dichlorobenzyl)-3-(2-oxoazepan-3-yl)carbamoyl]allyl-N-methyl-3,5-bis(trifluoromethyl)benzamide as a potent and orally active dual neurokinin NK1/NK2 receptor antagonist. Synonyms: Boc-D-Phe(3,4-DiCl)-OH; Boc-D-Phe(3,4-Cl2)-OH; (R)-Boc-2-amino-3-(3,4-dichlorophenyl)propionic acid; Boc-D-Phe(3,4-Cl2)-OH; (R)-2-((tert-Butoxycarbonyl)amino)-3-(3,4-dichlorophenyl)propanoic acid; D-Phenylalanine, 3,4-dichloro-N-[(1,1-dimethylethoxy)carbonyl]-; Boc-D-3,4-Dichlorophenylalanine; AK162594; N-BOC-3,4-DICHLORO-D-PHENYLALANINE. Grades: ≥ 98% (HPLC). CAS No. 114873-13-1. Molecular formula: C14H17Cl2NO4. Mole weight: 334.20.
Boc-3,4-difluoro-D-phenylalanine
Boc-3,4-difluoro-D-phenylalanine is used in the discovery of pyrrolopyrimidine inhibitors of Akt as antitumor agents. Synonyms: Boc-D-Phe(3,4-DiF)-OH; Boc-3,4-difluoro-D-Phe-OH; (R)-Boc-2-amino-3-(3,4-difluorophenyl)propionic acid; BOC-d-3,4-Difluorophenylalanine; Boc-D-Phe(3,4-F2)-OH; boc-d-phe(3,4-dif)-oh; N-(tert-Butoxycarbonyl)-3,4-difluoro-D-phenylalanine; D-Phenylalanine, N-[(1,1-dimethylethoxy)carbonyl]-3,4-difluoro-; J-300395; (r)-2-(tert-butoxycarbonylamino)-3-(3,4-difluorophenyl)propanoic acid; (2R)-3-(3,4-difluorophenyl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid. Grades: ≥ 98% (HPLC). CAS No. 205445-51-8. Molecular formula: C14H17F2NO4. Mole weight: 301.29.
Used in the synthesis of cyclic somatostatin analogs which bind selectively to somatostatin receptor type 3 (SSTR3). Synonyms: Boc-L-Phe(4-NH-2-CL-Z)-OH; 4-[[[(2-Chlorophenyl)methoxy]carbonyl]amino]-N-[(1,1-dimethylethoxy)carbonyl]-L-phenylalanine. Grades: 95%. CAS No. 198475-65-9. Molecular formula: C22H25N2O6Cl. Mole weight: 448.9.
Boc-D-β-phenylalanine, is an unnatural amino acid derivative. It can be used for the synthesis of Carnosine, derivatives as selective and efficient sequestering agents of cytotoxic reactive carbonyl species. Synonyms: Boc-D-β-Phe-OH; (S)-3-(Boc-amino)-3-phenylpropionic acid; (β S) -β -[[ (1, 1-Dimethylethoxy) carbonyl]amino]benzenepropanoic Acid; (3S)-3-[(tert-Butoxycarbonyl)amino]-3-phenylpropionic Acid; (S)-3-(tert-Butoxycarbonylamino)-3-phenylpropanoic Acid; (S)-3-Phenyl-3-(Boc-amino)propionic Acid; (S)-3-Phenyl-3-(tert-butoxycarbonylamino)propanoic Acid; (S)-3-[(tert-Butoxycarbonyl)amino]-3-phenylpropionic Acid; Boc-(S)-3-Amino-3-phenylpropionic acid; Boc-D-beta-phenylalanine; (S)-BOC-BETA3-PHENYLALANINE; BOC-S-ss-phenylalanine. Grades: ≥ 99% (HPLC, Chiral purity). CAS No. 103365-47-5. Molecular formula: C14H19NO4. Mole weight: 265.31.
Boc-D-Phenylalanine
Boc-D-Phenylalanine is used in the synthesis of benzo[de][1, 7]napthyridinones as PARP1 inhibitors. Also it is an important reagent in the preparation of proline-containing, β-turn mimetic cycle tetrapeptides. Group: Biochemicals. Alternative Names: N-[ (1, 1-dimethylethoxy) carbonyl]-D-phenylalanine; D-N-Carboxy-3-phenylalanine , N-tert-Butyl Ester; (2R)-2-(tert-Butoxycarbonylamino)-3-phenylpropanoic Acid; (2R)-2-[(tert-Butoxycarbonyl)amino]-3-phenylpropionic Acid; (R)-2-(tert-Butoxycarbonylamino)-3-phenylpropanoic Acid; (R)-2-[(tert-Butoxycarbonyl)amino]-3-phenylpropionic Acid; (R) -N- (tert-Butoxycarbonyl) phenylalanine; N-BOC-D-phenylalanine; N-[ (1, 1-Dimethylethoxy) carbonyl]-D-phenylalanine; N-tert-Butoxycarbonyl-D-phenylalanine; N-tert-Butyloxycarbonyl-D-phenylalanine; tert-Butoxycarbonyl-D-phenylalanine. Grades: Highly Purified. CAS No. 18942-49-9. Pack Sizes: 5g. US Biological Life Sciences.
CP-71362 is a pentapeptide renin inhibitor. It is selective for the canine enzyme. Synonyms: CP 71362; CP71362; CP-71362. L-Phenylalanine, N-(N2-(6-cyclohexyl-5-((N-(N-((1,1-dimethylethoxy)carbonyl)-L-phenylalanyl)-L-histidyl)amino)-4-hydroxy-2-(2-methylpropyl)-1-oxohexyl)-L-lysyl)-, (2R-(2R*,4S*,5S*))-. Grades: >98%. CAS No. 112227-15-3. Molecular formula: C51H76N8O9. Mole weight: 945.20.
Dimethylaminomethyl-polystyrene
200-400 mesh particle size, extent of labeling: 3-4 mmol/g base loading, matrix crosslinked with 2% DVB. Uses: Dimethylaminomethyl-polystyrene is used as a resin to synthesize hydrophobic dipeptides such as bis-phenylalanines that can be used in the study of peptide and protein aggregation. additionally, it can also be utilized for neutralizing acidic solution in a reaction mixture due to its proton reactive nature. Group: Polystyrene (ps). Alternative Names: Benzyldimethylamine polymer-bound; Copolymer of styrene and divinylbenzene, dimethylaminomethylated; Polystyrene crosslinked with divinylbenzene, dimethylaminomethylated. Mole weight: CH2N(CH3)2 - [CH2CH(C6H55)]n.
Dl-4-tert-butylphenylalanine
Dl-4-tert-butylphenylalanine. Uses: Designed for use in research and industrial production. Additional or Alternative Names: DL-4-Tert-butylphenylalanine;4-(1,1-Dimethylethyl)phenylalanine. Product Category: Heterocyclic Organic Compound. CAS No. 98708-80-6. Molecular formula: C13H19NO2. Mole weight: 221.3. Density: 1.084. Product ID: ACM98708806. Alfa Chemistry ISO 9001:2015 Certified.
L-α-Methyl DOPA Dimethyl Ether Hydrochloride
L-α-Methyl DOPA Dimethyl Ether is a α-MethylDOPA derivative. Group: Biochemicals. Alternative Names: 3-Methoxy-O,α-dimethyl-L-tyrosine Hydrochloride; L-α-Amino-α-methyl- β - (3, 4-dimethoxyphenyl) propionic Acid Hydrochloride; α-Methyl-3,4-dimethoxy-L-phenylalanine Hydrochloride; 3-(3,4-Dimethoxyphenyl)-2-methyl-L-alanine Hydrochloride. Grades: Highly Purified. CAS No. 5486-79-3. Pack Sizes: 2.5mg. US Biological Life Sciences.
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L-Phenylalanine tert-Butyl Ester
L-Phenylalanine tert-Butyl Ester is an derivative of L-Phenylalanine (P319415), an essential amino acid. Group: Biochemicals. Alternative Names: Phenylalanine tert-Butyl Ester; tert-Butyl (S)-2-Amino-3-phenylpropanoate; tert-Butyl L-Phenylalaninate; (S)-2-Amino-3-phenylpropionic Acid tert-Butyl Ester; L-Phenylalanine, 1,1-Dimethylethyl Ester. Grades: Highly Purified. CAS No. 16874-17-2. Pack Sizes: 10mg. US Biological Life Sciences.
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L-Phenylalanine tert-Butyl Ester-d5
isotope labelled L-Phenylalanine tert-Butyl Ester is an derivative of L-Phenylalanine (P319415), an essential amino acid. Group: Biochemicals. Alternative Names: Phenylalanine tert-Butyl Ester-d5; tert-Butyl (S)-2-Amino-3-phenylpropanoate-d5; tert-Butyl L-Phenylalaninate-d5; (S)-2-Amino-3-phenylpropionic Acid tert-Butyl Ester-d5; L-Phenylalanine, 1,1-Dimethylethyl Ester-d5. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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MMAF Hydrochloride
MMAF Hydrochloride, a synthetic antineoplastic agent, is a tubulin polymerization inhibitor that inhibits cell division by blocking the polymerization of tubulin. It is part of some experimental anti-cancer antibody-drug conjugates such as vorsetuzumab mafodotin and SGN-CD19A. Uses: Adcs cytotoxin. Synonyms: Monomethylauristatin F Hydrochloride; Monomethyl Auristatin F Hydrochloride; N-Methyl-L-valyl-L-valyl-(3R,4S,5S)-3-methoxy-5-methyl-4-(methylamino)heptanoyl-(αR,βR,2S)-β-methoxy-α-methyl-2-pyrrolidinepropanoyl-L-phenylalanine Hydrochloride; Monomethylauristatin Phenylalanine Hydrochloride; L-Valinamide, N-methyl-L-valyl-N-[(1S,2R)-4-[(2S)-2-[(1R,2R)-3-[[(1S)-1-carboxy-2-phenylethyl]amino]-1-methoxy-2-methyl-3-oxopropyl]-1-pyrrolidinyl]-2-methoxy-1-[(1S)-1-methylpropyl]-4-oxobutyl]-N-methyl-, Hydrochloride (1:1); ((2R,3R)-3-((S)-1-((3R,4S,5S)-4-((S)-N,3-dimethyl-2-((S)-3-methyl-2-(methylamino)butanamido)butanamido)-3-methoxy-5-methylheptanoyl)pyrrolidin-2-yl)-3-methoxy-2-methylpropanoyl)-L-phenylalanine Hydrochloride. Grades: >98%. CAS No. 1415246-68-2. Molecular formula: C39H66ClN5O8. Mole weight: 768.42.
N-Boc-4-nitro-L-phenylalanine Methyl Ester
N-Boc-4-nitro-L-phenylalanine Methyl Ester. Group: Biochemicals. Alternative Names: N-(tert-Butoxycarbonyl)-4-nitro-L-phenylalanine Methyl Ester; N-[ (1, 1-Dimethylethoxy) carbonyl]-4-nitro-L-phenylalanine Methyl Ester;Methyl (2S) -2-[ (tert-butoxycarbonyl) amino]-3- (4-nitrophenyl) propanoate. Grades: Highly Purified. CAS No. 65615-89-6. Pack Sizes: 250mg. US Biological Life Sciences.
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N-Boc-L-phenylalanine
Phenylalanine derivative used in enantioselective hydrolysis of amino acid esters. Acts as an inhibitor of gastric acid secretion. Group: Biochemicals. Alternative Names: N-[ (1, 1-dimethylethoxy) carbonyl]-L-Phenylalanine; tert-Butoxycarbonyl-L-phenylalanine; (2S)-2-((tert-Butoxycarbonyl)amino)-3-phenylpropionic Acid. Grades: Highly Purified. CAS No. 13734-34-4. Pack Sizes: 5g. US Biological Life Sciences.
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N-Dansyl-D-phenylalanine
N-Dansyl-D-phenylalanine. Group: Biochemicals. Alternative Names: N-[[5-(Dimethylamino)-1-naphthalenyl]sulfonyl]-D-phenylalanine; D-Dansylphenylalanine; Dansyl-(R)-phenylalanine. Grades: Highly Purified. CAS No. 56176-31-9. Pack Sizes: 100mg, 250mg, 500mg, 1g, 2g. Molecular Formula: C21H22N2O4S. US Biological Life Sciences.
Worldwide
N-Dansyl-L-phenylalanine
N-Dansyl-L-phenylalanine. Group: Biochemicals. Alternative Names: N-[[5-(Dimethylamino)-1-naphthalenyl]sulfonyl]-L-phenylalanine; N-[[5-(Dimethylamino)-1-naphthyl]sulfonyl]-3-phenylalanine; 1-Di methyl aminonaphthalene-5-sulfonyl-L-phenylalanine. Grades: Highly Purified. CAS No. 1104-36-5. Pack Sizes: 100mg, 250mg, 500mg, 1g, 2g. Molecular Formula: C21H22N2O4S. US Biological Life Sciences.
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Neotame
An alkylated dipeptide reported to be 6000 to 10000 times sweeter than sucrose; structurally related to Aspartame. A non-nutritive sweetener. Group: Biochemicals. Alternative Names: N-(3,3-Dimethylbutyl)-L-α-aspartyl-L-phenylalanine 2-Methyl Ester. Grades: Highly Purified. CAS No. 165450-17-9. Pack Sizes: 100mg. US Biological Life Sciences.
Neotame. Uses: Designed for use in research and industrial production. Additional or Alternative Names: L-Phenylalanine, N-(3,3-dimethylbutyl)-L-α-aspartyl-, 2-methyl ester. Appearance: White to off-white powder. CAS No. 165450-17-9. Molecular formula: C20H30N2O5. Mole weight: 378.46. Purity: 0.95. IUPACName: (3S)-3-(3,3-Dimethylbutylamino)-4-[[(2S)-1-methoxy-1-oxo-3-phenylpropan-2-yl]amino]-4-oxobutanoic acid. Canonical SMILES: CC(C)(C)CCNC(CC(=O)O)C(=O)NC(CC1=CC=CC=C1)C(=O)OC. Density: 1.133±0.06 g/cm³. Product ID: ACM165450179. Alfa Chemistry ISO 9001:2015 Certified.
Neotame-d3
A labeled alkylated dipeptide reported to be 6000 to 10000 times sweeter than sucrose; structurally related to Aspartame. A non-nutritive sweetener. Group: Biochemicals. Alternative Names: N-(3,3-Dimethylbutyl)-L-α-aspartyl-L-phenylalanine 2-(Methyl-d3) Ester. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
Worldwide
Neotame Related Compound A
A non-nutritive sweetener. Synonyms: N-(3,3-Dimethylbutyl)-L-α-aspartyl-L-phenylalanine. Grades: > 95%. CAS No. 190910-14-6. Molecular formula: C19H28N2O5. Mole weight: 364.45.
Neotame USP
N-[N-(3,3-Dimethylbutyl)-L-α-aspartyl]-L-phenylalanine 1-methyl ester. Grades: USP. CAS No. 165450-17-9. Product ID: 2-08514. Molecular formula: C20H30N2O5. Mole weight: 378.46. Source : high potency sweetener with sweetness exceeding sucrose by 8,000-12,000 times, and aspartame 40 times.
N-t-Boc-phenylalanine Cyclohexylamide
N-t-Boc-phenylalanine Cyclohexylamide. Group: Biochemicals. Alternative Names: [ (1S) -2- (Cyclohexylamino) -2-oxo-1- (phenylmethyl) ethyl]carbamic Acid 1,1-Dimethylethyl Ester. Grades: Highly Purified. CAS No. 169566-77-2. Pack Sizes: 500mg. US Biological Life Sciences.
N-(trans-4-tert-Butyl-cyclohexyl)carbonyl-D-phenylalanine. Group: Biochemicals. Alternative Names: trans-N-[[4- (1, 1-Dimethylethyl) cyclohexyl]carbonyl]-D-phenylalanine. Grades: Highly Purified. CAS No. 105746-46-1. Pack Sizes: 2mg, 5mg, 10mg, 25mg, 50mg. Molecular Formula: C20H29NO3. US Biological Life Sciences.
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Plantazolicin
Plantazolicin is a natural antibiotic produced by the gram-positive soil bacterium Bacillus velezensis FZB42 (previously Bacillus amyloliquefaciens FZB42). It is a selective bactericidal agent that is effective against Bacillus anthracis, the causative agent of anthrax. Synonyms: plantazolicin A; PZN; ((4S)-2''''-((1S,2S)-1-((3S)-2-(2'-(2-(2-(2-((S)-4-((diaminomethylene)amino)-1-(dimethylamino)butyl)thiazol-4-yl)-5-methyloxazol-4-yl)thiazol-4-yl)-5,5'-dimethyl-[2,4'-bioxazole]-4-carboxamido)-3-methylpentanamido)-2-methylbutyl)-5-methyl-4,5-dihydro-[2,4':2',4'':2'',4''':2''',4''''-quinqueoxazole]-4-carbonyl)-L-phenylalanine. Grades: ≥95%. CAS No. 1354655-37-0. Molecular formula: C63H69N17O13S2. Mole weight: 1336.47.
Quinupristin
Quinupristin is an antibiotic and usually used in combination with dalfopristin (The trade name is Synercid). It is active against Gram-positive bacteria through inhibiting protein synthesis of the cells, but not active against Gram-negative bacteria, so it needs to be given in combination with other antibacterials for mixed infections which also involve Gram-negative organisms. Uses: Semisynthetic depsipeptide type i streptogramin. an antibacterial agent. Synonyms: N-((6R, 9S, 10R, 13S, 15aS, 18R, 22S, 24aS)-22-(4-(dimethylamino)benzyl)-6-ethyl-10, 23-dimethyl-5, 8, 12, 15, 17, 21, 24-heptaoxo-13-phenyl-18-((((S)-quinuclidin-3-yl)thio)methyl)docosahydro-12H-pyrido[2, 1-f]pyrrolo[2, 1-l][1]oxa[4, 7, 10, 13, 16]pentaazacyclononadecin-9-yl)-3-hydroxypicolinamide; RP68888; RP57669; Antibiotic RP 57669; 4-[4-(Dimethylamino)-N-methyl-L-phenylalanine]-5-[(2S,5R)-5-[[[(3S)-1-azabicyclo[2.2.2]oct-3-yl]thio]methyl]-4-oxo-2-piperidine carboxylic acid] Virginiamycin S1. Grades: 95%. CAS No. 120138-50-3. Molecular formula: C53H67N9O10S. Mole weight: 1022.22.
Quinupristin-Dalfopristin complex
Quinupristin-dalfopristin complex is a 70:30 (w/w) complex of two semi-synthetic Streptomycin antibiotic. It is a highly effective antibiotic with activity against resistant strains. Synonyms: Synercid complex; Dalfopristin-Quinupristin complex; RP 59500; 4-[4-(dimethylamino)-N-methyl-L-phenylalanine]-5-[(2S)-5-[(1-azabicyclo[2.2.2]oct-3-ylthio)methyl]-4-oxo-2-piperidinecarboxylic acid]-virginiamycin S1 mixture with (3R, 4R, 5E, 10E, 12E, 14S, 26R, 26aS)-26-[[2-(diethylamino)ethyl]sulfonyl]-8, 9, 14, 15, 24, 25, 26, 26a-octahydro-14-hydroxy-4, 12-dimethyl-3-(1-methylethyl)-3H-21, 18-nitrilo-1H, 22H-pyrrolo[2, 1-c][1, 8, 4, 19]dioxadiazacyclotetracosine-1, 7, 16, 22(4H, 17H)-tetrone. Grades: >98% by HPLC. CAS No. 126602-89-9. Molecular formula: C53H67N9O10S.C34H50N4O9S. Mole weight: 1713.09.