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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Acetylcysteine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Acetylcysteine 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 Acetylcysteine-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.

Acetylcysteine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Acetyl-L-Cysteine-d3 Stable Isotopes CS-T-47181 131685-11-5 In Stock


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Acetylcysteine API Standards CS-O-07121 616-91-1 In Stock


Metabolites

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Hydroxyestradiol-1,4-N-acetylcysteine Metabolites CS-O-35501 Not Available Enquire
2-Hydroxyestrone-1,4-N-acetylcysteine Metabolites CS-O-35500 Not Available Enquire
4-Hydroxyestradiol-2-N-acetylcysteine Metabolites CS-O-35499 Not Available Enquire
4-Hydroxyestrone-2-N-acetylcysteine Metabolites CS-O-35498 Not Available Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Acetylcysteine EP Impurity B Impurities CS-O-07118 52-90-4 In Stock
Acetylcysteine EP Impurity C Impurities CS-O-10965 5545-17-5 In Stock
Acetylcysteine EP Impurity C Disodium salt Impurities CS-EO-03221 1376779-04-2 Enquire
Acetylcysteine EP Impurity D Impurities CS-O-07120 18725-37-6 In Stock
N-Acetyl-S-(2-carboxyethyl)-L-cysteine Bis(dicyclohexylamine... Impurities CS-BI-00015 201666-27-5 In Stock
N-Nitroso Acetylcysteine Impurities CS-EO-02608 Not Available Enquire


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Acetylcysteine impurity D (A0153000) EP Standards CS-EG-00021 18725-37-6 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Acetylcysteine amide Intermediates CS-O-13145 38520-57-9 Enquire
S-(3-Oxopropyl)-N-acetylcysteine Intermediates CS-ED-37923 140226-30-8 Enquire
S-Acetylcysteine Intermediates CS-O-52775 60333-15-5 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Methyl-2-thiazoline-4-carboxylic acid sodium Fine Chemicals CS-ZG-85649 15058-19-2 In Stock
Acetylcysteine Sodium Fine Chemicals CS-O-13147 19542-74-6 Enquire