Lidocaine in stock CAS 137-58-6

items

specification

results

description

white or slightly yellow, crystalline powder. has a characteristic odor and is stable in air.

white, crystalline powder. has a characteristic odor and is stable in air.

solubility

very soluble alcohol and in chloroform, freely soluble in benzene and in either, practically insoluble in water. dissolve in oils.

very soluble alcohol and in chloroform, freely soluble in benzene and in either, practically insoluble in water. dissolve in oils.

identification

a) ir spectrum: should be concordant with working standard.

b) by hplc: the retention time of the major peak of the sample solution corresponds to that of the standard solution as obtained in the assay.

a) ir spectrum: concordant with working standard.

b)complies

melting range

66.0°~69.0°

67.0°~69.0°

residue on ignition

≤0.1%

0.03%

chloride

≤0.0035%

≤0.0035%

sulfate

≤0.1%

≤0.1%

heavy metals

≤20ppm

≤20ppm

assay (by hplc)

98.5.0% ~102.5%

99.4%

additional test

water content (by k/f)

≤0.5%

0.32%

opinion: in the opinion of the undersigned, the above mentioned sample is of standard quality. the above mentioned sample complies with prescribed specification as per usp’38 and additional test.