White to white crystalline powder; odorless; tasteless
Solubility
This product is in 0.1mol / l sodium hydroxide solution, dissolved in 0.1mol / l hydrochloric acid, slightly soluble, slightly soluble in water, very slightly soluble in DMSO, methanol, ethanol, N, N-dimethyl formamide in the insoluble base.
Specific rotation
-97.0 ~ -103.0
HPLC
Peak retention time for the test product should be consistent with the reference standard peak retention time
IR
The product of the infrared absorption spectrum should be consistent with the reference substance
The first aromatic amines
This product should generate orange precipitate
Related Substances
Total Impurities: NMT 1.0%
Single Impurity: NMT 0.5%
Loss On Drying
10.5-12.5%
Residue on ignition
NMT 0.1%
Optical purity
NLT 99.5%
Sulfate
NMT 0.02%
PH
2.5-4.5
Heavy Metal
NMT 20%
Dichloromethane
NMT 0.06%
Ethanol
NMT 0.5%
N, N-dimethylformamide
NMT 0.088%
Triethylamine
NMT 0.1%
Pyridine
NMT 0.02%
Toluene
NMT 0.089%
Assay（Dry ）
98.00%
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