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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Amoxicillin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Amoxicillin impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Amoxicillin-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Amoxicillin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Hydroxyphenylglycine-d4 Stable Isotopes CS-O-11071 122-87-2(Unlabeled) In Stock
Amoxicillin 13C6 Stable Isotopes CS-EK-00764 26787-78-0 unlabeled Enquire
Amoxicillin EP Impurity J Stable Isotopes CS-O-48849 73590-06-4 In Stock
Amoxicillin-13C2,15N (Mixture of Diastereomers) Stable Isotopes CS-T-96332 1357002-99-3 Enquire
Amoxicillin-d4 Stable Isotopes CS-O-02742 26787-78-0 (Unlabeled) In Stock
APA Amoxicillin Amide-d4 Stable Isotopes CS-T-97803 Not Available Enquire
N-(Methyl But-2-enoyl) Amoxicillin D4 Stable Isotopes CS-T-97428 60781-73-9 (Unlabelled) Enquire
N-(Penicillan-6-yl) Open Ring Amoxicillinamide-d4 Stable Isotopes CS-T-96300 Not Available Enquire
p-Hydroxy-(D)-phenylglycyl Amoxicillin-d4 Stable Isotopes CS-T-97415 188112-75-6 Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Amoxicillin API Standards CS-O-03789 26787-78-0 In Stock
Amoxicillin Sodium IP (Sterile) API Standards CS-O-00940 34642-77-8 In Stock
Amoxicillin Sulfate API Standards CS-O-48375 Not Available Enquire
Amoxicillin Trihydrate API Standards CS-O-11598 61336-70-7 In Stock
Amoxicillin trihydrate: potassium clavulanate (4:1) API Standards CS-BX-01121 Not Available Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(4S)-2-Hydroxy-2-methyl-4-thiazolidinecarboxylic Acid Impurities CS-O-43056 Not Available Enquire
2-acetamido-2-(4-hydroxyphenyl)acetic acid Impurities CS-O-44021 37784-25-1 Enquire
Amoxicillin Aldehyde Impurities CS-O-05790 26787-78-0(Unlabeled) Enquire
Amoxicillin Close ring Trimer Impurities CS-EO-00542 Not Available Enquire
Amoxicillin double Side Chain Impurity Impurities CS-O-35879 Not Available Enquire
Amoxicillin EP Impurity B Impurities CS-T-03676 26889-93-0 In Stock
Amoxicillin EP Impurity C Impurities CS-O-07189 2088961-37-7 In Stock
Amoxicillin EP Impurity D (Mixture of isomers) Impurities CS-ZH-38743 1642629-94-4 In Stock
Amoxicillin EP Impurity D Sodium [Mixture of Isomers] Impurities CS-O-07190 68728-47-2 In Stock
Amoxicillin EP Impurity E Impurities CS-O-07191 1356020-01-3 Enquire
Amoxicillin EP Impurity F Impurities CS-O-30483 126247-63-0 In Stock
Amoxicillin EP Impurity G Impurities CS-O-07193 188112-75-6 Enquire
Amoxicillin EP Impurity H Impurities CS-O-07194 205826-86-4 Enquire
Amoxicillin EP Impurity H Impurities CS-T-53649 205826-86-4 In Stock
Amoxicillin EP Impurity I Impurities CS-O-07195 22818-40-2 In Stock
Amoxicillin EP Impurity J Impurities CS-T-48116 73590-06-4 In Stock
Amoxicillin EP Impurity J Disodium Impurities CS-EO-00627 94730-53-7 In Stock
Amoxicillin EP Impurity K Impurities CS-T-48117 210289-72-8 In Stock
Amoxicillin EP Impurity K trisodium salt Impurities CS-O-36365 210289-72-8 (free base) Enquire
Amoxicillin EP Impurity L Impurities CS-O-15344 1789703-32-7 In Stock
Amoxicillin EP Impurity O Impurities CS-O-33798 Not Available In Stock
Amoxicillin EP Impurity P Impurities CS-O-33799 2088960-44-3 Enquire
Amoxicillin Impurity M Impurities CS-O-51939 Not Available Enquire
Amoxicillin Open Ring Ethyl Impurities CS-O-35880 Not Available Enquire
Amoxicillin Open Ring Trimer Impurity Impurities CS-O-34994 Not Available Enquire
Amoxicillin Open RIng Trimer Impurity sodium salt Impurities CS-EO-00812 Not Available Enquire
Amoxicillin oxide Impurities CS-O-33800 Not Available Enquire
Amoxicillin Related Compound C Impurities CS-EO-01487 94659-47-9 In Stock
Amoxicillin Related Compound D Impurities CS-BX-00670 1642559-71-4 In Stock
Amoxicillin Related Compound E Impurities CS-BX-01078 178738-48-2 Enquire
Amoxicillin Related Compound J Impurities CS-O-39616 2088960-43-2 Enquire
Amoxicillin Related Compound M Impurities CS-O-48775 2088961-40-2 Enquire
Amoxicillin Related Compound M Sodum salt Impurities CS-EO-00373 Not Available Enquire
Amoxicillin Trihydrate - Impurity K Impurities CS-O-38048 2088961-38-8 Enquire
Amoxicillin Trimer Impurities CS-T-48115 174391-69-6 Enquire
Amoxicillin Trimer Trisodium Salt Impurities CS-T-62861 94703-34-1 Enquire
Amoxicilloic Acid Impurities CS-O-44343 57457-65-5 Enquire
Amoxipenicilloic acid Impurities CS-MM-60167 42947-63-7 Enquire
Amoxycilloic Acid (Mixture of Diastereomers) Impurities CS-O-59468 57414-05-8 Enquire
N-(Hydroxyphenylglycyl) amoxicillin Sodium salt Impurities CS-O-14112 Not Available In Stock
N-Nitroso Amoxicillin Impurities CS-O-43213 Not Available Enquire
N-Nitroso Amoxicillin Dimer Impurity -1 Impurities CS-EO-02620 Not Available Enquire
N-Nitroso Amoxicillin Dimer Impurity -2 Impurities CS-EO-02621 Not Available Enquire
N-Nitroso Amoxicillin EP Impurity C Impurities CS-EO-02614 Not Available Enquire
N-Nitroso Amoxicillin EP Impurity E Impurities CS-EO-02616 Not Available Enquire
N-Nitroso Amoxicillin Impurity Impurities CS-EO-02613 Not Available Enquire
N-Nitroso Amoxicillin Impurity J Dimer Impurities CS-EO-02617 Not Available Enquire
N-Nitroso Amoxicillin Impurity J Trimer Impurities CS-EO-02618 Not Available Enquire
N-Nitroso Amoxicillin Impurity K Impurities CS-EO-02619 Not Available Enquire
N-Pivaloyl Amoxicillin Impurities CS-T-03710 1313237-94-3 Enquire
p-hydroxyphenylglycine methyl ester Impurities CS-EO-01277 26531-82-8 Enquire
rac-Amoxicillin EP Impurity H Impurities CS-P-07132 106644-43-3 Enquire
Sterile Clavulanate Potassium+Amoxicillin Impurities CS-O-15494 61177-45-5 & 26787-78-0 Enquire


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Amoxicillin trihydrate (A0800000) EP Standards CS-EG-00882 61336-70-7 Enquire
Amoxicillin trihydrate for performance verification (Y000152... EP Standards CS-EG-00091 61336-70-7 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Amoxicillin CBZ protected Intermediate Intermediates CS-O-49845 Not Available In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Amoxicillin Related Compound A Fine Chemicals CS-O-07187 551-16-6 In Stock