L-TRYPTOPHAN

FOB Reference Price:Get Latest Price
US $22.5-26.4 / Kilogram | 50 Kilogram/Kilograms (Min. Order)
Supply Ability:
10 Ton/Tons per Month
Port:
SHANGHAI
Overview
Quick Details
CAS No.:
73-22-3
MF:
C11H12N2O2
EINECS No.:
200-795-6
Place of Origin:
China (Mainland)
Type:
Vitamins, Amino Acids and Coenzymes
Brand Name:
ZHECHEM
Purity:
99%min
Packaging & Delivery
Packaging Details
25kg/drum
Delivery Time
within 15 days

Specifications

1) Flexible payments
2) State-owned company with 30 years history;
3) Low price, reliable quality & delivery!

ITEMS

STANDARD  

RESULT

DESCRIPTION  

WHITE TO SLIGHTLY YELLOWISH-WHITE CRYSTALS OR CRYSTALLINE POWDER

WHITE CRYSTALLINE POWDER

SPECIFIC ROTATION [α] 20D

-29.4°~-32.8° 

-31.5°

CHLORIDE

≤0.05%

<0.05%

IRON

≤30PPM

<30PPM

SULPHATE

≤0.03%

<0.03%

HEAVY METALS                                                          

≤15PPM

<15PPM

LOSS ON DRYING                                                           

≤0.3%

0.07%

RESIDUE ON IGNITION                                                     

≤0.10%

0.07%

ORGANIC VOLATILE IMPURITIES                       

MEETS THE REQUIREMENT

CONFORMS

ASSAY                                                               

98.5%-101.5%

99.5%

PH                                                                           

5.5-7.0

5.9

TOTAL PLATE COUNT                                                 

≤10,000cfu/g

<10 cfu/g

YEAST AND MOULDS                                                     

≤100cfu/g

<10 cfu/g

TOTAL COLIFORM                                                         

≤10cfu/g

<10 cfu/g

ESCHERICHIA COLI                                                        

ABSENT

ABSENT

STAPHYLOCOCCUS AURREUS                                               

ABSENT

ABSENT

SALMOENLLA SPECIES                                                    

ABSENT 

ABSENT

CONCLUSION: COMPLY USP28.