Find where to buy products from suppliers in the USA, including: distributors, industrial manufacturers in America, bulk supplies and wholesalers of raw ingredients & finished goods.
Search for products or services, then visit the American suppliers website for prices, SDS or more information. You can also view suppliers in Australia, NZ or the UK.
| Product | Description | |
|---|---|---|
| Benzathine Benzyl Penicillin Impurity C | An impurity of Penicillin G which is an antibacterial drug (intravenous use) against a wide range of bacteria. Synonyms: Benzylpenicilloic acids Benzathine. Grade: > 95%. Molecular formula: C32H38N4O4S. Mole weight: 574.75. |  |
| Benzylpenicillin CP Impurity G | An impurity of Penicillin G which is an antibacterial drug (intravenous use) against a wide range of bacteria. Grade: > 95%. Molecular formula: C6H11NO3S. Mole weight: 177.22. | |
| Benzylpenicillin CP Impurity I | An impurity of Penicillin G which is an antibacterial drug (intravenous use) and exerts a bacterial action against a wide range of bacteria. Grade: > 95%. Molecular formula: C17H19NO4S. Mole weight: 333.41. | |
| Benzylpenicillin CP Impurity J | An impurity of Penicillin G which shows bactericidal property by acting directly on peptidoglycans. Grade: > 95%. Molecular formula: C17H20N2O6S. Mole weight: 380.42. | |
| Benzylpenicillin CP Impurity L | An impurity of Penicillin G which is an antibacterial drug (intravenous use) against a wide range of bacteria. Grade: > 95%. Molecular formula: C26H29N3O7S. Mole weight: 527.6. | |
| Benzylpenicillin EP(CP) Impurity F | An impurity of Penicillin G which is used to treat many different types of infections caused by bacteria, such as ear infections. Grade: > 95%. Molecular formula: C15H20N2O3S. Mole weight: 308.4. | |
| [2R-[2α(S*),4 β ]]-4-[[ (2, 2-Dimethyl-1-oxopropoxy) methoxy]carbonyl]-α -[[ (hexahydro-1H-azepin-1-yl) methylene]amino]-5, 5-dimethyl-2-thiazolidineacetic Acid | [2R-[2α(S*),4 β ]]-4-[[ (2, 2-Dimethyl-1-oxopropoxy) methoxy]carbonyl]-α -[[ (hexahydro-1H-azepin-1-yl) methylene]amino]-5, 5-dimethyl-2-thiazolidineacetic Acid is an impurity of Pivmecillinam (P550700), an orally active prodrug of Amdinocillin (A576300), an broad spectrum penicillin antibiotic that binds specifically to penicillin binding protein 2. Group: Biochemicals. Grades: Highly Purified. CAS No. 72584-25-9. Pack Sizes: 1mg, 5mg. Molecular Formula: C21H35N3O6S, Molecular Weight: 457.58. US Biological Life Sciences. |  Worldwide |
| [2R-[2α(S*),4β]]-4-[[(2,2-Dimethyl-1-oxopropoxy)methoxy]carbonyl]-α-[[(hexahydro-1H-azepin-1-yl)methylene]amino]-5,5-dimethyl-2-thiazolidineacetic Acid | Pivmecillinam EP Impurity B is an impurity of Pivmecillinam, which is an orally active prodrug of the broad-spectrum penicillin antibiotic Mecillinam. Synonyms: Pivmecillinam Impurity B; [2R-[2α(S*),4β]]-4-[[(2,2-Dimethyl-1-oxopropoxy)methoxy]carbonyl]-α-[[(hexahydro-1H-azepin-1-yl)methylene]amino]-5,5-dimethyl-2-thiazolidineacetic Acid; 2-Thiazolidineacetic acid, 4-[[(2,2-dimethyl-1-oxopropoxy)methoxy]carbonyl]-α-[[(hexahydro-1H-azepin-1-yl)methylene]amino]-5,5-dimethyl-, [2R-[2α(S*),4β]]-. CAS No. 72584-25-9. Molecular formula: C21H35N3O6S. Mole weight: 457.58. | |
| (2R,4S)-2-[(2S,5S)-5-(4-Hydroxyphenyl)-3,6-dioxo-2-piperazinyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid | (2R,4S)-2-[(2S,5S)-5-(4-Hydroxyphenyl)-3,6-dioxo-2-piperazinyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid is an impurity in the synthesis of N-(Penicillan-6-yl) Open Ring Amoxicillinamide Disodium Salt , whch is an impurity of Amoxicillin (A634235); a semi-synthetic antibiotic related to Penicillin (P233500). Antibacterial. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C16H19N3O5S. US Biological Life Sciences. | Worldwide |
| (2R, 4S) -2- ( (R) -2- (Benzyl (2- (benzylamino) ethyl) amino) -2-oxo-1- (2-phenylacetamido) ethyl) -5, 5-dimethylthiazolidine-4-carboxylic Acid | (2R, 4S) -2- ( (R) -2- (Benzyl (2- (benzylamino) ethyl) amino) -2-oxo-1- (2-phenylacetamido) ethyl) -5, 5-dimethylthiazolidine-4-carboxylic Acid is an impurity of Amoxicillin (A634235), a semi-synthetic antibiotic related to Penicillin. Antibacterial. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 5mg, 10mg. Molecular Formula: C32H38N4O4S, Molecular Weight: 574.73. US Biological Life Sciences. | Worldwide |
| (2R, 4S) -2- ( (R) -2- (Benzyl (2- (benzylamino) ethyl) amino) -2-oxo-1- (2-phenylacetamido) ethyl) -5, 5-dimethylthiazolidine-4-carboxylic Acid-d4 | (2R, 4S) -2- ( (R) -2- (Benzyl (2- (benzylamino) ethyl) amino) -2-oxo-1- (2-phenylacetamido) ethyl) -5, 5-dimethylthiazolidine-4-carboxylic Acid-d4 is a labelled analogue of (2R, 4S) -2- ( (R) -2- (Benzyl (2- (benzylamino) ethyl) amino) -2-oxo-1- (2-phenylacetamido) ethyl) -5, 5-dimethylthiazolidine-4-carboxylic Acid (B209965), an impurity of Amoxicillin (A634235), which is a semi-synthetic antibiotic related to Penicillin. Antibacterial. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C32H34D4N4O4S, Molecular Weight: 578.76. US Biological Life Sciences. | Worldwide |
| [2S-[2α,5α,6 β (S*) ] ] -6- [ [ (4-Hydroxyphenyl) [ [ [ (4-nitrophenyl) methoxy] carbonyl] amino] acetyl] amino] -3, 3-dimethyl-7-oxo-4-thia-1-azabicyclo [3. 2. 0] heptane-2-carboxylic Acid | [2S-[2α,5α,6 β (S*) ] ] -6- [ [ (4-Hydroxyphenyl) [ [ [ (4-nitrophenyl) methoxy] carbonyl] amino] acetyl] amino] -3, 3-dimethyl-7-oxo-4-thia-1-azabicyclo [3. 2. 0] heptane-2-carboxylic Acid is an impurity in the synthesis of N-(Penicillan-6-yl) Open Ring Amoxicillinamide Disodium Salt, which is an impurity of Amoxicillin (A634235); a semi-synthetic antibiotic related to Penicillin (P233500). Antibacterial. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C24H23N4NaO9S. US Biological Life Sciences. | Worldwide |
| 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxylic Acid | 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxylic Acid is an impurity of Flucloxacillin, which is a narrow-spectrum beta-lactam antibiotic of the penicillin class. Synonyms: 3-(2-Chloro-6-fluorophenyl)-5-methyl-4-isoxazolecarboxylic Acid; Flucloxacillin EP Impurity D; Flucloxacillin impurity D. Grade: 98%. CAS No. 3919-74-2. Molecular formula: C11H7ClFNO3. Mole weight: 255.63. | |
| 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxylic Acid-13C4 | 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxylic Acid is the isotope labelled impurity of Flucloxacillin (F419200), a new semisynthetic penicillin with broad spectrum of antibacterial activity. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C713C4H7ClFNO3. US Biological Life Sciences. | Worldwide |
| (4S)-Dicloxilloic Acid | (4S)-Dicloxilloic Acid is a metabolite of Dicloxacillin, which is a narrow-spectrum β-lactam antibiotic of the penicillin class used to treat infections caused by susceptible (non-resistant) Gram-positive bacteria. Synonyms: (4S)-2-[[[3-(2,6-Dichlorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid; 2-[[[[3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-(4S)-thiazolidinecarboxylic Acid; Dicloxacillin Impurity B; Dicloxacillin EP Impurity B; 4-Thiazolidinecarboxylic acid, 2-[[[[3-(2,6-dichlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-, (4S)-. Molecular formula: C18H19Cl2N3O4S. Mole weight: 444.33. | |
| 5-Hydroxymethyl Flucloxacillin | An impurity of Flucloxacillin. Flucloxacillin is a narrow-spectrum beta-lactam antibiotic of the penicillin class. Synonyms: 5-Hydroxymethyl Flucloxacillin; (2S,5R,6R)-6-[[[3-(2-Chloro-6-fluorophenyl)-5-(hydroxymethyl)-4-isoxazolyl]carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid. Grade: > 95%. CAS No. 75524-31-1. Molecular formula: C19H16ClFN3O6S Na. Mole weight: 468.87 22.99. | |
| Benzylpenicilloic Acid Benzathide | Benzylpenicilloic Acid Benzathide is an impurity of Amoxicillin, which is an antibiotic used to treat a number of bacterial infections including middle ear infections, strep throat, pneumonia, skin infections, and urinary tract infections. Synonyms: (2R,4S)-2-[(1R)-2-[benzyl-[2-(benzylamino)ethyl]amino]-2-oxo-1-[(2-phenylacetyl)amino]ethyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid; Benzathine Benzylpenicillin Impurity C (EP); Benzathine Benzyl Penicillin Impurity C (Benzylpenicilloic acids Benzathine); 4-Thiazolidinecarboxylic acid, 5,5-dimethyl-2-[(1R)-2-oxo-1-[(2-phenylacetyl)amino]-2-[(phenylmethyl)[2-[(phenylmethyl)amino]ethyl]amino]ethyl]-, (2R,4S)-. Grade: 98%. Molecular formula: C32H38N4O4S. Mole weight: 574.73. | |
| Benzyl Penicilloic Acid HCl (Mixture of Diastereomers) | An impurity of Penicilloic Acid which is a thiazolidinedicarboxylic acid obtained from the penicillins by the hydrolytic opening of the lactam ring. Grade: > 95%. Molecular formula: C16H20N2O5S.HCl. Mole weight: 388.87. | |
| Benzyl Penicilloic Acid Mono-Sodium Salt (Mixture of Diastereomers) | An impurity of Penicilloic Acid which is a thiazolidinedicarboxylic acid obtained from the penicillins by the hydrolytic opening of the lactam ring. Grade: > 95%. Molecular formula: C16H19N2O5S.Na. Mole weight: 374.39. | |
| Cefuroxime Axetil Delta-3 | Δ2-Cefuroxime axetil is an oral prodrug of cefuroxime, a second-generation cephalosporin antibiotic. This compound inhibits bacterial cell wall synthesis by targeting penicillin-binding proteins (PBPs), making it effective against a broad spectrum of Gram-positive and Gram-negative bacteria. It is commonly prescribed for respiratory, urinary tract, and skin infections. Synonyms: 1-Acetoxyethyl (6R,7R)-3-((carbamoyloxy)methyl)-7-((Z)-2-(furan-2-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylate; 5-Thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid, 3-[[(aminocarbonyl)oxy]methyl]-7-[[(2Z)-2-furanyl(methoxyimino)acetyl]amino]-8-oxo-, 1-(acetyloxy)ethyl ester, (6R,7R)-; 5-Thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid, 3-[[(aminocarbonyl)oxy]methyl]-7-[[2-furanyl(methoxyimino)acetyl]amino]-8-oxo-, 1-(acetyloxy)ethyl ester, [6R-[6α,7β(Z)]]-; Cefuroxime Axetil Impurity A (Delta 3-Isomer); Cefuroxime Axetil EP Impurity A; Cefuroxime Axetil Impurity A (EP); Δ2-Cefuroxime axetil; delta3-Cefuroxime axetil. Grade: 95%. CAS No. 123458-61-7. Molecular formula: C20H22N4O10S. Mole weight: 510.47. | |
| Desmethyl Nafcillin Sodium Salt | Desmethyl Nafcillin Sodium Salt is an impurity of Nafcillin, a semi-synthetic penicillin antibiotic that is particularly effective against Gram-positive bacteria. Synonyms: 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2-methoxy-1-naphthalenyl)carbonyl]amino]-3,3-dimethyl-7-oxo-, sodium salt (1:1), (2S,5R,6R)-; 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2-methoxy-1-naphthalenyl)carbonyl]amino]-3,3-dimethyl-7-oxo-, monosodium salt, (2S,5R,6R)-; 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2-methoxy-1-naphthalenyl)carbonyl]amino]-3,3-dimethyl-7-oxo-, monosodium salt, [2S-(2α,5α,6β)]-; BRL 1336; Nafcillin Desmethyl Impurity. Grade: 98%. CAS No. 1104-49-0. Molecular formula: C20H19N2NaO5S. Mole weight: 422.43. | |
| Dicloxacilloic Acid | Dicloxacilloic Acid is a metabolite of Dicloxacillin, which is a narrow-spectrum β-lactam antibiotic of the penicillin class used to treat infections caused by susceptible (non-resistant) Gram-positive bacteria. Synonyms: [2R-[2α(R*),4β]]-4-Carboxy-α-[[[3-(2,6-dichlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]-5,5-dimethyl-2-thiazolidineacetic Acid; Dicloxacillin Impurity A; Dicloxacillin EP Impurity A. Grade: 98%. CAS No. 42947-69-3. Molecular formula: C19H19Cl2N3O6S. Mole weight: 488.34. | |
| Dihydropenicillin F Potassium Salt | An impurity of Penicillin Potassium which is an antibacterial drug and acts through the inhibition of biosynthesis of cell-wall mucopeptide. Synonyms: potassium salt of 6-pentylpenicillin; Pennicillin G potassium; 6-pentylpenicillin. Grade: > 95%. CAS No. 31447-86-6. Molecular formula: C14H21N2O4S.K. Mole weight: 352.5. | |
| D-Penicillamine O-Lactose Adduct Hydrochloride | D-Penicillamine O-Lactose Adduct Hydrochloride is an impurity of D-Penicillamine, which is a penicillin metabolite used in the treatment of Wilson's disease, Cystinuria, Scleroderma and arsenic poisoning. Molecular formula: C17H31NO12S.HCl. Mole weight: 509.95. | |
| (E)-Cefuroxime axetil | (E)-Cefuroxime axetil is the (E)-isomer of cefuroxime axetil, a prodrug form of the second-generation cephalosporin antibiotic cefuroxime. The E configuration refers to the stereochemistry of the oxime group on the β-lactam core, which is in the trans orientation. This isomer is the therapeutically active form, contributing to its antibacterial efficacy. Cefuroxime axetil improves the oral bioavailability of cefuroxime by utilizing the acetoxyethyl ester as a prodrug, which is hydrolyzed in vivo to release the active drug. It acts by inhibiting bacterial cell wall synthesis via binding to penicillin-binding proteins (PBPs). This compound is effective against a wide range of Gram-positive and Gram-negative bacteria and is commonly used to treat respiratory tract infections, urinary tract infections, and skin infections. Synonyms: 1-Acetoxyethyl (6R,7R)-3-((carbamoyloxy)methyl)-7-((E)-2-(furan-2-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate; Cefuroxime Axetil E-Isomer Impurity 1; 1-(Acetyloxy)ethyl (6R,7R)-3-[[(aminocarbonyl)oxy]methyl]-7-[[(2E)-2-(2-furanyl)-2-(methoxyimino)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate; 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-c. Grade: ≥95%. CAS No. 97232-96-7. Molecular formula: C20H22N4O10S. Mole weight: 510.47. | |
| Flucloxacillin Impurity E | An impurity of Flucloxacillin. Flucloxacillin is a narrow-spectrum beta-lactam antibiotic of the penicillin class. Synonyms: 6-APA Flucloxacillin. Grade: 96%. Molecular formula: C27H27ClFN5O7S2. Mole weight: 652.11. | |
| Flucloxacillin Impurity F | An impurity of Flucloxacillin. Flucloxacillin is a narrow-spectrum beta-lactam antibiotic of the penicillin class. Synonyms: (5R)-Flucloxacillin N4-Acetyl Penilloic Acid. Grade: > 95%. Molecular formula: C21H21ClFN3O7S. Mole weight: 513.92. | |
| Flucloxacillin Impurity G | An impurity of Flucloxacillin. Flucloxacillin is a narrow-spectrum beta-lactam antibiotic of the penicillin class. Synonyms: (5R)-Flucloxacillin N4-[N-[[3-(2-Chloro-6-fluoro-phenyl)-5-methyl-4-isoxazolyl]carbonyl]-glycinyl] Penilloic Acid. Grade: ≥95%. Molecular formula: C32H27Cl2F2N5O9S. Mole weight: 766.55. | |
| Flucloxacillin Sodium Impurity B | An impurity of Flucloxacillin. Flucloxacillin is a narrow-spectrum beta-lactam antibiotic of the penicillin class. Synonyms: 2-[[[[3-(2-Chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid. Grade: > 95%. CAS No. 1276016-89-7. Molecular formula: C18H19ClFN3O4S. Mole weight: 427.89. | |
| Penicillin G-[d7] N-ethylpiperidinium salt | Penicillin G-[d7] N-ethylpiperidinium salt is the labelled salt of Penicillin G, which is an impurity of penicilline. Synonyms: (2S-(2α,5α,6β))-3,3-Dimethyl-7-oxo-6-phenylacetyl-D7-amino-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate 1-ethyl-piperidinium; Benzylpenicilline-D7 N-ethylpiperidinium salt; Penicillin G-D7 N-ethylpiperidinium salt. Grade: 95% by HPLC; 98% atom D. CAS No. 1217445-37-8. Molecular formula: C23H26D7N3O4S. Mole weight: 454.63. | |
| Penicillin potassium | Penicillin potassium. Uses: For analytical and research use. Group: Impurity standards. CAS No. 113-98-4. Molecular formula: C16H17KN2O4S. Mole weight: 372.48. Catalog: APB113984. |  |
| Penicillin X Sodium | It is produced by the strain of Penicillium notatum NRRL 1209, Pen. chrysogenum NRRL 1951. It is an antibiotic. Synonyms: (2S,5β)-6α-[[(4-Hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2β-carboxylic acid sodium salt; 6α-[(4-Hydroxyphenylacetyl)amino]penicillani cacid sodium salt; Penicillin III sodium; p-Hydroxybenzylpenicillin sodium; Benzylpenicillin Impurity C. Grade: > 95%. CAS No. 5985-13-7. Molecular formula: C16H17N2O5SNa. Mole weight: 372.37. | |
| Phenylacetylglycine | An impurity of Penicillin G which is an antibacterial drug and acts through the inhibition of biosynthesis of cell-wall mucopeptide. Synonyms: N-(Phenylacetyl)glycine; Phenaceturic Acid; N-Phenacetylglycine; NSC 408424; NSC 92778; Phenacetylglycine. Grade: ≥ 99% (HPLC). CAS No. 500-98-1. Molecular formula: C10H11NO3. Mole weight: 193.2. | |
| (Z)-Penicillin F | (Z)-Penicillin F is an impurity of Penicillin. Penicillin belongs to the β-lactam class of antibiotics, is a very common antibacterial drug. Molecular formula: C14H20N2O4S. Mole weight: 312.38. | |
Our database is helping our users find suppliers everyday.
