- Assay / purity
- 98.0–102.0%
- MOQ
- 25 kg
- Lead time
- 15–25 days
Sulfadimidine
Sulfamethazine, 4-amino-N-(4,6-dimethyl-2-pyrimidinyl)benzenesulfonamide · CAS 57-68-1
A long-established sulphonamide, usually sold with trimethoprim at 5:1. The specification is dominated by the 4-aminobenzenesulfonamide hydrolysis product, which climbs with storage temperature.
Part of the veterinary antibacterial line. Withdrawal periods and MRL guidance are part of the supply conversation, not an afterthought.
Identity
| Catalogue no. | BP-VET-015 |
| CAS number | 57-68-1 |
| Molecular formula | C12H14N4O2S |
| Molecular weight | 278.33 g/mol |
| HS code | 2935.00 |
| Synonyms | Sulfamethazine, 4-amino-N-(4,6-dimethyl-2-pyrimidinyl)benzenesulfonamide |
| Product line | Veterinary APIs |
| Category | Veterinary Antibacterials |
Release specification
Catalogue standard below. For a supply agreement we release against your dossier specification; send it with the enquiry and the CoA will be built around it.
| Parameter | Specification |
|---|---|
| Assay | 99.0–101.0% |
| Related substances | 4-aminobenzenesulfonamide ≤ 0.10%; any unspecified impurity ≤ 0.30% |
| Water content | ≤ 0.5% (Karl Fischer) |
| Heavy metals | ≤ 20 ppm (ICP-MS) |
| Melting range | 197–200 °C |
| Residue on ignition | ≤ 0.10% |
Application
Sulphonamide for swine and cattle respiratory and enteric infections, alone or potentiated.
Packaging, storage & logistics
| Standard packaging | 25 kg fibre drum with double PE liner |
| Minimum order | 25 kg |
| Lead time | 15–25 days |
| Storage conditions | Store below 30 °C, protected from light |
| Shipping documents | Invoice, packing list, CoA, SDS, certificate of origin; DGM/IATA declaration where applicable |
Documentation provided
- CoA per batchBatch-specific, tested against the specification agreed at PO stage
- SDSCurrent GHS revision; destination-language version on request
- MRL guidance noteMaximum residue limit and withdrawal-period reference for the destination market
Need the DMF open part, a sample CoA or an audit pack before you can qualify us? Ask on the enquiry form — we send those documents before any commercial discussion.
Request a quotation
Related products
- Assay / purity
- 97.5–101.0%
- MOQ
- 25 kg
- Lead time
- 20–30 days
- Assay / purity
- ≥ 99.0%
- MOQ
- 5 kg
- Lead time
- 25–40 days