Items	Standard	Result
Appearance	White crystalline powder	White crystalline powder
Melting point	115-118ºC	117.3ºC
Identify (1)	Identification (1) the retention time of the main peak of the test solution shall be consistent with that of the control solution.	Qualified
Identify (2)	Identification (2) the maximum absorption shall be at the wavelength of 259 nm.	Qualified
Identify (3)	Identification (3) the infrared absorption spectrum shall be consistent with the control spectrum.	Qualified
Solution clarity	Should clarify	Clarify
Solution color	≤No. 1 (yellow or yellow green)	≤1
Acidity	≤0.1ml	<0.1ml
Chloride	≤0.035%	<0.035%
Sulfate	≤0.024%	<0.024%
Para acid	≤0.30%	0.06%
Hydroxybenzene methyl ester	≤0.4%	0.01%
Total impurities	≤0.8%	0.09%
Loss on drying	≤0.5%	0.17%
Residue	≤0.10%	0.05%
Heavy metal(AS)	≤0.001%	<0.001%
Heavy metal(Pb)	≤0.0001%	<0.0001%
Purity(HPLS)	98.0-102.0%	99.78%
Conclusion	Qualified

Items	Standard	Result
Appearance	Amber liquid	Amber liquid
Properties	Stable in air soluble in water	Stable in air soluble in water
Rh content	5%±0. 2	5%
Purity	99%min	99.9%
Insoluble Substance	0.1%	0.1%
inductively Coupled Plasma/Elemental Analyzer	Pt<0.005% Pd<0.005% Ag<0.005% Ru<0.005% Al<0.005% Fe<0.005% Mg<0.005% Si<0.005% Ca<0.005% Cu<0.005% Cr<0.005% Pb<0.0005%	0.0018% 0.0020% 0.0019% 0.0016% 0.0017% 0.0011% 0.0014% 0.0015% 0.0015% 0.0016% 0.0011% N.D.

Factory Price Pharmaceutical Chemical Purity Degree 99% CAS No. 120-47-8 Ethylparaben

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