Sulfanilic Acid

High quality and good sell sulfanilic acid (cas:121-57-3)
product name:sulfanilic acid
cas:121-57-3
assay:99.5%
apperence:white powder
packing: craft paper bag
mf: c6h7no3s
mw: 173.19
einecs: 204-482-5
sulfanilic acid chemical properties
mp >300 °c(lit.)
density 1.485
storage temp. store in dark!
water solubility 0.1 g100 ml (20 ºc)
merck 14,8926
brn 908765
stability: stable. Incompatible with strong oxidizing agents.
Cas database reference 121-57-3(cas database reference)
nist chemistry reference benzenesulfonic acid, 4-amino-(121-57-3)
epa substance registry system benzenesulfonic acid, 4-amino-(121-57-3)
sulfanilic acid usage and synthesis
chemical properties greyish-white crystals or powder
usage a toxic metabolite of tartrazine (t007700). Used as ehrlich's reagent, for detecting of nitrites. Antibacterial.
General description white powder with faint purple tinge. Grayish-white flat crystals. Becomes anhydrous at around 212°f. Low toxicity (used medicinally).
Air & water reactions insoluble in water.
Reactivity profile sulfanilic acid is an amino acid. Reacts weakly with both acids and bases.
Fire hazard flash point data for sulfanilic acid are not available, however sulfanilic acid is probably combustible.
uses:
1. It is one important dyes intermediates, it can be used in acid orange, acid light yellow 2g, acid intermediary yellowish brown 4g, acid intermediary dark yellow gg, direct yellow gr, reactive yellow k-rn, brilliant red k-2g, datish red k-dg and blue k-3r, etc.
2. It also can be used in production of dyes whitening agent, such as solute salt b, optical brightener bg, optical brightener bbu, dyeing proof salt h, etc.
3. It is also used in agriculture pesticide to proof wheat rust.
4. It is also one ideal intermediary in spices, food pigment, medicine, building materials, etc.