Molecular Formula:C₁₀H₁₀N₄O₂S
Molecular Weight:250.28
Property: white or offwhite crystal or powder, odorless, tasteless, color becomes dark on meeting light; slightly soluble in alcohol and propanone, almost insoluble in water, easy solulbe in sodium hydroxide solution or ammonia solution, soluble in dilute hydrochloride acid.

Quality Standard BP2007/USP31
Item	Index
Appearance	white or offwhite crystal powder
Acidity	≤0.2ml
Color of Solution	≤Y5BY5GY5
Heavy Metals	≤10PPM
Content	99.0~101.0%
Loss on Drying	≤0.5%
Ignition Residue	≤0.1%
Related Matters	≤0.5%

Uses:sulfa drug, used to treat the infection caused by sensitive bacteria and toxoplasm
Packing:25KG per paperboard drum
Storage and Transportation:protect from light, sealed.