
Pharmaceutical-grade Ethambutol Hydrochloride (CAS 1070-11-7), 98.5–101.5%, supplied wholesale by Zyntex to licensed producers. First-line antituberculosis API for tablets and four-drug fixed-dose combinations. CoA and SDS.
Ethambutol hydrochloride (ethambutol dihydrochloride, C10H24N2O2·2HCl) is a white crystalline powder that is freely soluble in water. It is the (S,S)-enantiomer, and its stereochemical purity is controlled because other isomers are less active.
Pharmaceutical companies use it in tablets for tuberculosis, mostly in fixed-dose combinations with isoniazid, rifampicin and pyrazinamide that follow WHO treatment guidelines. These combinations make it an important API for public health programs worldwide. Another older antituberculosis API in our range is Streptomycin Sulfate.
Zyntex supplies ethambutol HCl from qualified API producers with lot-specific documentation, only to companies licensed for pharmaceutical use.
Main application areas:
💊 Tablets
API for single-ingredient tablets.
🔗 Fixed-Dose Combinations
Component of four-drug TB combination tablets.
🌍 Public Health Programs
API for products used in national TB programs.
🔬 Generic Development
Development and reference material.
| Parameter | Standard Value |
|---|---|
| Product Name | Ethambutol Hydrochloride |
| CAS Number | 1070-11-7 |
| Molecular Formula / Weight | C10H24N2O2·2HCl / 277.23 g/mol |
| Assay / Purity (HPLC) | 98.5% – 101.5% (On Dried Basis) |
| Appearance | White crystalline powder |
| Melting Point | Approx. 199 – 204 °C |
| Loss on Drying | ≤ 0.5% |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Pharmacologically active substance; avoid inhalation of dust and contact with skin and eyes. Wear gloves, eye protection and dust protection. Store in tightly closed containers in a cool, dry place. Always consult the Safety Data Sheet (SDS) for full classification and handling instructions.
Is ethambutol used in fixed-dose combinations?
Yes. It is a standard component of four-drug combination tablets together with isoniazid, rifampicin and pyrazinamide.
Who can purchase this API?
It is supplied only to pharmaceutical companies holding the licenses required for API purchase and use in their country.
How can I get a price and documents?
Prices depend on quantity, packaging and destination. Contact us with your required volume to receive a quotation together with the CoA and SDS.