Guaifenesin api?

Do you mean “guaifenesin” as an API (active pharmaceutical ingredient)? Here’s a concise overview.

What is it
- API name: guaifenesin (also called glyceryl guaiacolate or guaiacyl glycerol ether)
- Role: an oral expectorant used to help loosen mucus in coughs
- Common synonyms: glyceryl guaiacolate, guaiacyl glycerol ether

Basic chemical info (typical identifiers)
- Formula: C10H14O4
- Approx. molecular weight: ~198.22 g/mol
- Physical form: usually a white to off-white crystalline powder (for API)

Regulatory and quality notes
- Standards: specifications are defined in pharmacopeias such as USP–NF, EP, or JP. Typical requirements include:
- Assay by HPLC: usually not less than about 98% (per pharmacopeial standard)
- Impurities: specified limits for related substances per the applicable monograph
- Residual solvents and other general API tests per ICH guidelines
- Availability: widely manufactured by multiple API suppliers; used globally in OTC cough remedies
- Handling and storage: store in a cool, dry place, in a tightly closed container; protect from moisture and light as advised by the supplier’s SDS

Typical use in formulations
- Used as the active ingredient in many cough syrups and tablets/dissolving granules to aid productive coughs

If you’re looking for something specific, tell me:
- Are you sourcing API (e.g., looking for suppliers, SDS, or specs)?
- Do you want a sample API specification outline (e.g., typical USP/EP monograph sections)?
- Are you seeking regulatory status, dosing/formulation guidance, or safety information?

I can tailor the details (e.g., a supplier checklist or a draft spec) to your exact use case.