Methyl hydrogen isophthalate CAS NO.1877-71-0

company

shandong wnn industrial co., ltd

product name

aspirin

other name

acetylsalicylic acid

cas no.

50-78-2

einecs no.

200-064-1

molecular formula

c9h8o4

packing

25kg/drum

standard

pharmaceutical grade

picture

test items

specifications

characters

white crystal or crystalline powder

identification

a violet-red color is produced

infrared absorption

sample infrared absorption spectropho-tometry complies with aspirin.crs

loss on drying

not more than 0.5% of weight

readily carbonizable substance

no more color than m.f.q

residue on ignition

nmt0.05%

substances insoluble in sodium carbonate

the solution is clear

chloride

nmt 0.014%

sulfate

nmt 0.04%

heavy metals

nmt10ppm

free salicylic acid

nmt 0.1%

residual solvents

acetic acid:lod≤0.5%

assay(on dried basis)

contains c9h8o499.5%-100.5%