Do you want a general overview of Levonorgestrel as an API, or are you looking for something specific (e.g., quality specs, regulatory status, or supplier options)?
Here’s a concise overview you can use as a starting point.
What is Levonorgestrel API
- Levonorgestrel (LNG) is a synthetic progestin used in many oral contraceptives and in emergency contraception formulations.
- It is a regulated pharmaceutical active ingredient (API) derived from sterile synthesis of steroidal scaffolds. It is commonly supplied in pharmacopeia-grade forms for formulation in tablets, kits, and similar products.
Typical API quality and specifications (general guidance)
- Grades: USP/NF, EP (Ph. Eur), BP, JP grades are commonly available; GMP-compliant API manufacturers produce these.
- Assay (purity): Typically around 97–103% by the assay method specified in the pharmacopeia; exact acceptance ranges depend on the supplier.
- Impurities: Controlled with a defined impurity profile; related substances usually limited to small % depending on grade.
- Enantiomeric/stereochemical purity: LNG is a specific enantiomer; suppliers may specify enantiomeric purity or overall impurity profile.
- Residual solvents: Assessed per ICH guidelines (e.g., GC methods); limits vary by grade.
- Water content: Measured by KF or other valid methods per pharmacopeial requirements.
- Tests typically included: identity (IR/HPLC), assay, related substances, residual solvents, water, placebo/blank checks, packaging/container closure integrity as applicable.
- Stability: Often rated with a shelf life of 2–5 years under appropriate storage (typical 15–25°C, away from moisture and light).
Regulatory and procurement considerations
- Regulatory alignment: Ensure supplier provides GMP documentation, COA/CoC, and a batch release record; confirm compliance with your target pharmacopeia.
- Documentation to request: COA/CoA with full batch information, MSDS, stability data, FTIR/H NMR data for identity confirmation, supplier GMP certificate, and GMP-compliant manufacturing site details.
- Packaging and logistics: Commonly supplied in kilogram to multi-kilogram quantities; standard packaging (e.g., amber glass bottles or plastic-lined drums) with tamper-evident seals; confirm moisture protection and non-sterile/non-sterile handling requirements.
- Supplier due diligence: Verify GMP-Certificate validity, past audit findings, production capacity, and lead times; request trial batches or samples if permissible.
How to find and vet LNG API suppliers
- Search terms: “levonorgestrel API USP GMP,” “levonorgestrel pharmaceutical API supplier,” “levonorgestrel API price per kg.”
- Channels: API manufacturers, contract manufacturers, and reputable distributors. Look for GMP-certified facilities and pharmacopeial grade LNG.
- Due diligence checklist (short):
- GMP certificate and regulatory dossier
- COA/CoC with full batch data
- Stability data and shelf life
- Analytical method compatibility with your formulation
- Documentation for import/regulatory compliance in your country
- Sample availability for quality assessment
If you’d like, I can tailor this to:
- a specific country/region (US, EU, India, China, etc.)
- your required grade (USP/NF, EP, etc.)
- your target quantity and timeline
- or help you draft a one-page supplier inquiry/spec sheet
Would you like me to provide a ready-to-send supplier inquiry template or a starter spec sheet for Levonorgestrel API?