Appearance White or yellowish-white powder
Solubility Very slightly soluble in water,
slightly soluble in alcohol.
？Identification
A: Melting point
B: Specific absorbance
C: IR-spectrum
D: Chemical reaction
199-203ºC
Max.287nm: 240-250
Complies with reference spectrum
Green fluorescence at 365nm
Appearance of solution Not more intensely colored than
Reference Solution BY7
Related substances
Method A by HPLC Impurity F≤0.1%
Any single impurity≤0.1%
Total impurities≤0.2%
Method B by HPLC Any single impurity≤0.1%
Total impurities≤0.2%
Heavy metals ≤20ppm
Residual methanol ≤3000ppm
Residual DMSO ≤5000ppm
Residual acetic acid ≤5000ppm
Impurity K(aniline) by GC ≤5ppm
Loss on drying ≤1.0%
Sulphated ash ≤0.1%
Assay 98.5-101.0%
Hangzhou Dingyan Chem Co., Ltd. is located in the beautiful tourist city of hangzhou, is a comprehensive chemical enterprice which doing import and export business by its own company. Product range including API, pharma intermediates, extracts, reagents, plant growth regulator, food additive, Peptide products, etc.
With the developing world market, we adhere to the principle of "quality, service, integrity and development", following "low carbon, environmental protection", forge ahead,
And constantly in pursuit of higher level of product quality and service. We have passed ISO9001: 2008 from Nov. 2013 on.
We warmly welcome customers home and abroad to build mutual trust, mutual benefit and stable cooperation relatiions.
