Pharmaceutical Food Grade L-Tryptophan

• CAS No.: 73-22-3
• Formula: C11h12n2o2
• Packaging Material: Plastic
• Storage Method: Normal
• Shelf Life: >12 Months
• Nutrient Composition: Amino Acid
• Resource: Chemosynthesis
• The content of active substances: ＞90%
• Transport Package: 25kg Drum
• Origin: China
• HS Code: 2942000000
• Production Capacity: 500 Tons Per Year

Product Description

Product Name: L-Tryptophan

Product Name	L-Tryptophan
CAS No.	73-22-3
Molecular Formula	C11H12N2O2
Molecular Weight	204.23
Appearance	White Powder
Assay	99%
Grade	Pharmaceutica/Food Grade

Specifications

Food Grade:

Item	FCCIV	AJI92	USP32
Appearance	White to slightly yellow crystal or crystalline powder	White to slightly yellow crystal or crystalline powder	---
Assay(on dry basis)	98.5% ~ 101.5%	99.0% ~ 100.5%	98.5% ~ 101.5%
PH Value	---	5.4 ~ 6.4	5.5 ~ 7.0
Specific rotation	-30.0° ~ -33.0°	-30.0° ~ -32.5°	-29.4° ~ -32.8°
Transmittance	---	≥95.0%	---
Chloride(as Cl)	---	≤0.02%	≤0.05%
Ammonium(as NH4)	---	≤0.02%	---
Sulfate(as SO4)	---	≤0.02%	≤0.03%
Iron(as Fe)	---	≤0.002%	≤0.003%
Heavy metals(as Pb)	≤0.002%	≤0.001%	≤0.0015%
Other amino acids	---	conform	---
Loss on drying	≤0.3%	≤0.2%	≤0.3%
Residue on ignition	≤0.1%	≤0.1%	≤0.1%

Feed Grade:

Item	Specifications
Assay	≥98.5%	9.0% ~ 12.0%
Specific Rotation	-30.0° ~ -33.0°	---
Loss on drying	≤0.5%	≤10%
Residue on ignition	≤0.5%	---
Heavy metal(as Pb)	≤20 mg/kg	≤10 mg/kg
Coliform group	---	≤5000 mpn
Salmonellas	---	Absent

Pharma Grade:

Item	USP32
Assay(on dry basis)	98.5% ~ 101.5%
PH Value	5.5 ~ 7.0
Specific rotation	-29.4° ~ -32.8°
Chloride(as Cl)	≤0.05%
Sulfate(as SO4)	≤0.03%
Iron(as Fe)	≤0.003%
Heavy metals(as Pb)	≤0.0015%
Loss on drying	≤0.3%
Residue on ignition	≤0.1%

L-Tryptophan (Abbreviated Try) is one of human and animal essential amino acids. But it can't be synthesized by the body.

Like other amino acids, L-Tryptophan is one of the building blocks of protein. But unlike some amino acids, L-Tryptophan is considered essential because the body can't manufacture its own. L-Tryptophan plays many roles in animals and humans alike. But perhaps most importantly, it is an essential precursor to a number of neurotransmitters in the brain. As such, L-Tryptophan is the only substance normally found in the diet that can be converted into serotonin. Since serotonin is converted in the brain into melatonin, L-Tryptophan clearly plays a role in balancing mood and sleep patterns.

Used as nutritional supplement and antioxidant.
1. Used in the animal feed to improve animal feed intake, weaken stress reaction, improve animal sleeping.
2. Used in the animal feed to increase the antibody of fetus and young animals.
3. Used in the animal feed to improve milk secretion of dairy cattle.
4. Used in the animal feed to reduce the amount of high protein ration and save feed cost.

As a nutritional supplement, L-tryptophan is to make up amino acid infusions and comprehensive amino acid preparations together with other essential amino acids.

L-tryptophan is made by microbial fermentation which the glucose, yeast extract, ammonium sulfate are used as raw materials and get refined by membrane filtration, ion exchange, crystallization and drying process.