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melatonin,China hing price supplier

melatonin
min.order / fob price
≥1 piece
OriginChina
Production Capacity
CategoryOthers
Update Time2014-04-08
company profile
Zhengzhou Hing Chemical Products Co.,Ltd.
China
Contact: Ms.Wenna Wang
Tel: 0086-0371-86035351
Number of Employees: 100 ~ 500
Business Type: Trade
product details
Standard:USP
Origin:China
Brand:hing

 

RESULT OF ANALYSIS

 

ITEMS

 

STANDARDS

 

RESULT

 

Identification

 

positive reaction

 

comply

 

Loss on drying

 

MAX 0.5%

 

     0.18%

 

Residue on ignition

 

MAX 0.1%

 

     0.07%

 

Heavy metal

 

MAX10ppm

 

       comply

 

Melting point

 

117-120 °C

 

118.-119 °C

Clarity and degree of opalescence of liquids

1 % ethanol and chloroform

Solution

 

comply

 

Particle size

 

80-120mesh

 

     comply

related substances

Max0.1%

comply

residual solvents: ethanol

Max 1000ppm

comply

total viable count

Max3000cfu/g

comply

yeast and moulds

Max300cfg/g

comply

e. coli

Absence/g

comply

salmonella

Absence/25g

comply

 

HPLC

 

≥99.5%

 

99.55%

.

CONCLUSION:Comply with USP

 

DIRECTOR

 

INSPECTOR

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