Quetiapine fumarate 98.5%min Pharmaceutical API Antipsychotic drugs made in china CAS NO.111974-72-2

appearance

off-white or yellowish-white crystalline powder

melting point

172~176℃

identification

chemical reaction: positive

uv: the uv spectrum of sample conforms with reference.

ir: the infrared absorption spectrum complies with the spectrum of reference substance.

ph

5.0～6.0

related substances

n-oxide impurity is not more than0.2%,

any other individual impurity is not more than 0.1%.

ther sum of all other impurities is not more than 0.2%

residual solvents

methanol:≤0.3%

ethanol:≤0.5%

toluene:≤0.089%

loss on drying

≤0.5%

residue on ignition

≤0.1%

heavy metals

≤10ppm

assay

≥98.5% (dried basis)