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

Guaifenesin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Guaifenesin-d3 Stable Isotopes CS-O-02774 1189924-85-3 In Stock
rac Guaifenesin-d5 Cyclic Carbonate Stable Isotopes CS-T-78506 1329809-21-3 Enquire
rac-Guaifenesin-d5 Stable Isotopes CS-T-78201 1329563-41-8 In Stock


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Guaifenesin API Standards CS-EB-02440 Not Available Enquire
Guaifenesin API Standards CS-O-01591 93-14-1 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Glycerin-1-(4-aminobenzoat) Impurities CS-O-41031 136-44-7 Enquire
Guaifenesin EP Impurity B Impurities CS-T-32928 14007-09-1 In Stock
Guaifenesin EP Impurity C Impurities CS-O-14006 1797132-23-0 In Stock
Guaifenesin EP Impurity D Impurities CS-T-49365 16929-60-5 In Stock
rac Guaifenesin Cyclic Carbonate Impurities CS-T-55459 2049-21-0 In Stock


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Guaifenesin(G0700000) EP Standards CS-EG-03274 93-14-1 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Guaiacol Fine Chemicals CS-O-11176 90-05-1 Enquire