2-Acetamido-3-Mercaptopropionic Acid or N-Acetyl Cysteine or Acetylcysteine USP BP Ph Eur EP Grade Supplier Exporter Manufacturers' Representative
Email: info@ammol.orgCall Toll Free +1-855-552-6665
Toll Free: 1-855-55-AMMOL2-Acetamido-3-Mercaptopropionic Acid or N-Acetyl Cysteine or Acetylcysteine
CAS Number: 616-91-1
Molecular Formula: C5H9NO3S
Molecular Weight: 163.19
2-Acetamido-3-Mercaptopropionic Acid or N-Acetyl Cysteine or AcetylcysteineN Acetyl Cysteine or Acetylcysteine or 2-Acetamido-3-Mercaptopropionic Acid is an organic compound with molecular formula C5H9NO3S. It occurs as a White, crystalline powder. Freely soluble in water and in alcohol; practically insoluble in chloroform and in ether. N-acetyl cysteine is an antioxidant that might play a role in preventing cancer. Use of N-acetyl cysteine (NAC), as a nutritional supplement, is being considered by FDA.
Acetylcysteine USP Grade Specifications:
C5H9NO3S -- 163.19
l-Cysteine, N-acetyl-;
N-Acetyl-l-cysteine CAS 616-91-1
UNII: WYQ7N0BPYCDEFINITION
Acetylcysteine contains NLT 98.0% and NMT 102.0% of C5H9NO3S, calculated on the dried basis.IDENTIFICATION
A. Infrared Absorption
Residue on Ignition: NMT 0.5%
Optical Rotation, Specific Rotation: To pass the test. +21° to +27°
pH: 2.0–2.8 in a solution (1 in 100)
Loss on Drying: Dry a sample at a pressure of about 50 mm of mercury at 70° for 4 h: it loses NMT 1.0% of its weight.
We also supply Acetylcysteine or N-Acetyl Cysteine BP Ph Eur Grade
American Molecules, also known as ammol.org is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.
![]()
![]()
![]()
![]()
Suppliers and Manufacturers' Representative:
9910 Bent Oak Dr
Houston, TX 77040, USA
Call Toll Free: 1-855-55-AMMOL 1-855-552-6665
Email: info@ammol.org
13 February, 2026