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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

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


Metabolite

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


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Acetylcysteine EP Impurity C Impurity CS-O-10965 5545-17-5 In Stock
Acetylcysteine EP Impurity C Disodium salt Impurity CS-EO-03221 1376779-04-2 Enquire
Acetylcysteine EP Impurity D Impurity CS-O-07120 18725-37-6 In Stock
N-Acetyl-3-sulfino-L-alanine Impurity CS-O-49482 282727-77-9 Enquire
N-Acetyl-S-(2-carboxyethyl)-L-cysteine Bis(dicyclohexylamine... Impurity CS-BI-00015 201666-27-5 In Stock


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
S-Acetylcysteine Intermediate CS-O-52775 60333-15-5 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Acetylcysteine Sodium Fine Chemicals CS-O-13147 19542-74-6 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Nitroso Acetylcysteine Nitrosamine CS-EO-02608 ---- Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Cystine Secondary Standards CS-SS-26671 56-89-3 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-acetylcysteine amide-D3 Stable Isotope Reagent CS-O-42598 2316771-31-8 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Cystine Dimethyl Ester Building Blocks CS-EO-03287 1069-29-0 Enquire
(R)-2-Amino-3-sulfopropanoic Acid Building Blocks CS-TA-14749 498-40-8 Enquire


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Acetylcysteine EP Impurity B Therapeutic CS-O-07118 52-90-4 In Stock