Mebendazole

TEST SPECIFICATION RESULT
Characteristics White or almost white or slight
yellow crystalline powder		 Conforms
Assay 98.0-102.0% 100.3%
Identification ultraviolet:Absorption wave band ≤312nm Conforms
ultrared: Agree with spectrum chart 101 Conforms
Sulfate ≤0.1% 0.02%
Absorption coefficient 485-505 488
A-type A≤10% <10%
Related substances Single spot≤0.5% 0.1%
Loss on drying ≤0.5% 0.04%
Heavy metals ≤20ppm <20ppm
Microbe Germ≤100/gram <5/ gram
  Aether,microzyme≤100/ gram <5/ gram


Metronidazole
Characteristics:A white or yellowish crystalline powder,slightly soluble in water
、in acetone、in alcohol and in methylene chloride,very slightly soluble in ether.
Packing and Storage: Packing in 25kg fibre drum,Storing in a well-closed
container,protected from light.

TEST SPECIFICATION RESULT
Identification Positive reaction Positive reaction
Melting point 159-163℃ 160.3-160.5℃
Loss on drying ≤0.5% 0.27%
Specific absorbance 365-389 377
Heavy metals ≤20ppm <20ppm
Appearance of solution Pass Pass
Related substances Pass Pass
Residue on ignition ≤0.1% 0.02%
Assay 99.0—101.0% 99.78%


Mannitol

TEST SPECIFICATION RESULT
Characteristic White crystal powder,Smelless,sweet Comforms
Clarity and color Comforms Comforms
Assay 98.0—102.0% 99.9%
Identification 1 Positive reaction Conforms
Identification 2 Positive reaction Conforms
Identification 3 Positive reaction Conforms
Chloride ≤0.003% 0.0025%
Sulphate ≤0.010% 0.005%
Oxalic ≤0.02% 0.01%
Heavy metals ≤0.001% 0.0008%
Arsenic ≤0.0002% 0.0001%
Boiling point 166—170℃ 166.4-167.8℃
Residue on ignition ≤0.1% 0.03%
Loss on drying ≤0.5% 0.2%
PH Conform Conforms


Aluminium hydroxide dried gel

Item
Description
Acid-neutratizing capacity
Carbonate
Chloride
Sulfate
Heavy metals
Arsenic
Alkalinity
Assay 		IStandard
White amorphous powder
25.0 meq/g
≤0.1ml
≤0.85%
≤0.6%
≤60ppm
≤8ppm
PH≤10.0 in 4%mixtrue
Al(OH)3≥76.5%		 Result
Conforms
30.6 meq/g
<0.1ml
<0.2%
<0.6%
<30ppm
<8ppm
<10.0
78.5%


Cinnamic Acid
Formula： C9H8O2
Formula weight： 148.16
Appearance：White or slight yellow crystal powder
Melting point：≥130℃
Arsenic: ≤3ppm
Heavy metals(Pb)：≤10ppm
Assay：≥99.0%
Residue on ignition: ≤0.1%

Piperazine hexahydrate

Item
Appearance
Assay
Melting point
Residue on ignition
Boiling point

Standard
White or slight yellowish crystalline
98%
43-45℃
0.01%
125-130℃

 Result
Conforms
99.1%
43-44.5℃
<0.01%
125-130℃


Sibutramine

Item
Description
Identification
Melting point
Loss on drying
Solubility
PH
Heavy metals
Assay
Residue on ignition
Each impurity 		Standard
White to off-white powder
Similar to the standard
193-200℃
5-6.5%
Freely soluble in Methanol
4.0-6.0
≤10ppm
≥99%
<0.1%
≤0.2%		 Result
Conforms
Conforms
196.2-198.8℃
5.7%
Conforms
5.1
10ppm
99.62%
0.034%
0.1%


Cialis

Item
Description
Melting point
Loss on drying
Specific rotation
Heavy metals
Assay
L.L.C		 Standard
White powder
300-303℃
≤0.5%
71-72°
≤20ppm
≥99.5%
Only one spot		 Result
Conforms
301.2-302.7℃
0.23%
71.0°
10ppm
99.90%
Only one spot


Chloroacetic acid

Appearance
Great Grade White or light yellow crystals
Grade1 White or light yellow crystals
Premium Grade White or light yellow crystals		 Chloroacetic acid
≥99%
≥97.5%
≥96.0%		 Dichloroacetic acid
≤0.5%
≤1.5%
≤2.5%


Aminosulfonic Acid

Item
Appearance
Purity(NH2SO3H)
Sulfate (SO4)
Insoluble in water
Iron (Fe)
Loss on drying 		Specification
Colorless or white crystals
≥99.5%
≤0.4%
≤0.02%
≤0.01%
≤0.2%


2-Amino-4-nitrophenol
Molecular Formula :C6H6N2O3
Molecular Weight:154.13
Properties:orange or brown yellow crystal slice; brown yellow crystal powder for
industrial samples.
Melting point :140-146.Melting point for crystals containing water80-90.Soluble in
ethanol, aether and acid, slightly soluble in water, noxious.
Specification：

Item
Appearance
Content
Melting Point
Insoluble Matters in Acid 		Index
Brown yellow crystal powder
<NH2Value ≥98 %
≥140℃
≤0.1%

Usage:it is used in the production of active dye, acid color, neutral dye, solvent
dye, such as Disp. Black K-BR, acid Mordant Green RH, neutral black BL, leather
pigment orange 2BL etc.
Package:25kg plastic woven bag or50kg iron drum

4-Nitro-2-aminophenol sodium
Molecular Formula:C6H5O3N2Na
Molecular Weight:176.11
Properties:brown yellow crystal slice, red brown loosened crystals for industrial
samples, 4-Nitro-2-aminophenol sodium containing crystal water，melting point
80-90. Soluble in water and acid.

Item
Appearance
Content<NH2Value
Difference of amido value and nitryl value
Melting point
Insoluble Matters in water 		Index
Red brown loosened crystal
≥70%
≤5%
≥138℃
≤0.5%

Usage:it is used in the production of ative dye, acid color, neutral dye, solvent
dye, such as Disp. Black K-BR,acid Mordant Green RH etc.
Package: 30kg in plastic woven bag with plastic liner

2,4-XYLIDINE

Item
Appearance
Identification
Assay(2,4-XYLIDINE)
Related substance(2,5-XYLIDINE)
Related substance(2,3-XYLIDINE)
Related substance(Other XYLIDINE)
Water content(by K.fisher)
Boiling point		 Standard
Colorless or light brown liquid
Positive
≥99%
≤0.7%
≤0.1%
≤0.2%
≤0.2%
213-214℃		 Result
Colorless liquid
Conformed
99.674%
0.220%
0.012%
0.004%
0.15%
213.5℃


2,6-XYLIDINE

Item
Appearance
Identification
Assay(2,6-XYLIDINE)
Related substance(2,5-XYLIDINE)
Related substance(2,4-XYLIDINE)
Related substance(Other XYLIDINE)
Water content(by K.fisher)
Boiling point 		Standard
Colorless or light brown liquid
Positive
≥99%
≤0.2%
≤0.3%
≤0.5%
≤0.2%
214-216℃		 Result
Colorless liquid
Conformed
99.883%
0.067%
0.025%
0.024%
0.10%
215℃
 
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