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Best Selling Products China Factory Supply Low Price High Quality Tryptophan CAS 73-22-3
Tryptophan is an amino acid that is made from plant or animal sources.
It is known as an "essential" amino acid because the body does not produce it. Tryptophan is important to the functions of many organs in the body.
When you consume tryptophan, your body absorbs it and changes it to eventually become a hormone called serotonin. Serotonin transmits signals between your nerve cells and also narrows (constricts) blood vessels. The amount of serotonin in the brain can affect mood.
Product name
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Best Selling Products China Factory Supply Low Price High Quality Tryptophan CAS 73-22-3
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Assay
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98.5-101.5%
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Molecular Formula
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C11H12N2O2
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Molecular Weight
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204.23
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CAS No
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73-22-3
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Shelf life
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2 years
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Package
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1kg Best Selling Products China Factory Supply Low Price High Quality Tryptophan CAS 73-22-3/with double plastic container inside/Aluminum foil bag outside.
1kg/Carton, 5kg/Carton, 10kg/Carton, 25kg/Drum, OEM |
Shipment
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FedEx,DHL,EMS,UPS
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Delivery time
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Within 2-3 work days after payment
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Payment terms
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TT,Western Union,L/C,D/P,D/A,MoneyGram
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L-Tryptophan | USP32 | AJI92 | CP2015 ( Injection Grade ) | EP8 |
Assay | 98.5-101.5% | 99.0-100.5% | ≥99.0% | 98.5-101.0% |
PH | 5.5-7.0 | 5.4-6.4 | 5.4-6.4 | / |
Specific rotation[a]D20 | / | -30.5°--32.5° | -30.0°--32.5° | -30.0°--33.0° |
Specific rotation[a]D25 | -29.4°--32.8° | / | / | / |
Transmittance(T430) | / | ≥95.0% | ≥95.0% | clear & colorless ≤BY6 |
Chloride(Cl) | ≤0.05% | ≤0.02% | ≤0.02% | ≤0.02% |
Ammonium(NH4) | / | ≤0.02% | ≤0.02% | ≤0.02% |
Sulfate(SO4) | ≤0.03% | ≤0.02% | ≤0.02% | ≤0.03% |
Iron(Fe) | ≤30PPM | ≤20PPM | ≤20PPM | ≤20PPM |
Heavy metals(Pb) | ≤15PPM | ≤10PPM | ≤10PPM | ≤10PPM |
Arsenic | / | ≤1PPM | ≤1PPM | / |
Other amino acids | / | conform | ≤0.50% |
Impurity A≤10ppm
Sum of impurities with a retention time less than that of Tryptophan <100ppm
Sum of impurities with a retention time great than that of Tryptophan and up to 1.8 time of N-acetyltryptophan <300ppm
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Ninhydrin-positive substances | / | / | / | conform |
Loss on drying | ≤0.30% | ≤0.20% | ≤0.20% | ≤0.50% |
Residue on ignition | ≤0.10% | ≤0.10% | ≤0.10% | ≤0.10% |
Organic volatile impurities | / | / | / | / |
Endotoxin | / | / | <50EU/g | / |
Product Name | CAS NO. | Product Name | CAS NO. |
BCAA | 69430-36-0 | L-Lysine Acetate | 57282-49-2 |
Glycine | 56-40-6 | L-Lysine Base | 56-87-1 |
L-Alanine | 56-41-7 | L-Lysine Mono Hcl | 657-27-2 |
L-Arginine | 74-79-3 | L-Methionine | 63-68-3 |
L-Arginine Hcl | 1119-34-2 | L-Methionine | 59-51-8 |
L-Asparagine | 5794-13-8 | L-Norvaline | 6600-40-4 |
L-Aspartate | 74-79-3 | L-Ornithine Hcl | 3184-13-2 |
L-Aspartic Acid | 56-84-8 | L-Phenylalanine | 63-91-2 |
L-Carnitine | 541-15-1 | L-Proline | 147-85-3 |
L-Citrulline | 372-75-8 | L-Serine | 56-45-1 |
L-Cysteine Base | 52-90-4 | L-Theanine | 3081-61-6 |
L-Cysteine Hcl | 7048-4-6 | L-Thioproline | 34592-47-7 |
L-Cystine | 56-89-3 | L-Threonine | 72-19-5 |
L-Glutamic Acid | 56-86-0 | L-Tryptophan | 73-22-3 |
L-Glutamine | 56-85-9 | L-Tyrosine | 60-18-4 |
L-Histidine | 71-00-1 | L-Valine | 72-18-4 |
L-Histidine Hcl | 5934-29-2 | N-Acetyl-L-Cysteine | 616-91-1 |
L-Hydroxyproline | 51-35-4 | S-Carboxymethyl-L | 638-23-3 |
L-Isoleucine | 73-32-5 | Taurine | 107-35-7 |
L-Leucine | 61-90-5 | β-Alanine | 107-95-9 |
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