B1 mono

APPEARANCE

A white or almost white crystalline powder

IDENTIFICATION

White to practically white crystals or crystalline powder

APPEARANCE OF SOLUTION

Consistent with the reference IR spectra

PH

A white curdy precipitate is formed with silver nitrate,the precipitate is insoluble in nitric acid but dissolves readily in
ammonia

SULPHATES

About 205 ℃

LIMIT OF NITRATE

Clear,not more intense than Y7

WATER

2.4~3.0

RESIDUE ON IGNITION

NMT 0.5%

ABSORBANCE OF SOLUTION

NMT 0.1%

RESIDUAL SOLVENTS -METHANOL -ETHANOL

NMT 0.1%

Impurity A

16.9%~17.6%

Impurity B

NMT 0.5%

Impurity C

NMT0.002%(BP2014)

Any impurity

NMT 0.003%(USP37)

Total impurities

NMT 0.15%

Assay

NMT 0.10%