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ChemicalBook >> CAS DataBase List >> L-Tryptophan

L-Tryptophan

L-Tryptophan price.
  • $5 - $8386
  • Product name: L-Tryptophan
  • CAS: 73-22-3
  • MF: C11H12N2O2
  • MW: 204.23
  • EINECS:200-795-6
  • MDL Number:MFCD00064340
  • Synonyms:Trytophan (W) Solution, 100ppm;L-Tryptophan Vetec(TM) reagent grade, >=98%;L-TRYPTOPHAN (13C11,D8,15N2);L-Tryptophan(pharm grade);L-Tryptophan, Animal-Free;DL-2-AMINO-3-(3-INDOLYL)PROPIONIC ACID;DL-ALPHA-AMINO-3-INDOLEPROPIONIC ACID;DL-B-3-INDOLYLALANINE
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  • 1083961000
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  • ManufacturerAcrotein
  • Product numberNA-0799
  • Product descriptionL-Tryptophan 97%
  • Packaging100g
  • Price$31.17
  • Updated2021-12-16
  • Buy
  • ManufacturerAcrotein
  • Product numberNA-0799
  • Product descriptionL-Tryptophan 97%
  • Packaging1kg
  • Price$275
  • Updated2021-12-16
  • Buy
  • ManufacturerActivate Scientific
  • Product numberAS33044-2S
  • Product descriptionL-Tryptophan 97% ee
  • Packaging250g
  • Price$58
  • Updated2021-12-16
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  • ManufacturerAK Scientific
  • Product numberK248
  • Product descriptionL(-)-Tryptophan
  • Packaging5g
  • Price$14
  • Updated2021-12-16
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  • ManufacturerAK Scientific
  • Product numberK248
  • Product descriptionL(-)-Tryptophan
  • Packaging100g
  • Price$41
  • Updated2021-12-16
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  • ManufacturerAK Scientific
  • Product numberK248
  • Product descriptionL(-)-Tryptophan
  • Packaging500g
  • Price$137
  • Updated2021-12-16
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  • ManufacturerAK Scientific
  • Product numberK248
  • Product descriptionL(-)-Tryptophan
  • Packaging1kg
  • Price$241
  • Updated2021-12-16
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  • ManufacturerAlfa Aesar
  • Product numberJ62508
  • Product descriptionL-Tryptophan, Cell Culture Reagent
  • Packaging10g
  • Price$28.9
  • Updated2024-03-01
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  • ManufacturerAlfa Aesar
  • Product numberA10230
  • Product descriptionL-Tryptophan, 99%
  • Packaging25g
  • Price$45.7
  • Updated2024-03-01
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  • ManufacturerAlfa Aesar
  • Product numberJ22765
  • Product descriptionL-Tryptophan, 98.5-101.5% (dry basis), Affymetrix/USB
  • Packaging100g
  • Price$100
  • Updated2023-06-20
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  • ManufacturerAlfa Aesar
  • Product numberA10230
  • Product descriptionL-Tryptophan, 99%
  • Packaging100g
  • Price$120
  • Updated2024-03-01
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberJ62508
  • Product descriptionL-Tryptophan, Cell Culture Reagent
  • Packaging100g
  • Price$135
  • Updated2024-03-01
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA10230
  • Product descriptionL-Tryptophan, 99%
  • Packaging500g
  • Price$436
  • Updated2024-03-01
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  • ManufacturerAlfa Aesar
  • Product numberJ62508
  • Product descriptionL-Tryptophan, Cell Culture Reagent
  • Packaging1kg
  • Price$698
  • Updated2024-03-01
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberJ22765
  • Product descriptionL-Tryptophan, 98.5-101.5% (dry basis), Affymetrix/USB
  • Packaging1kg
  • Price$842
  • Updated2023-06-20
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  • ManufacturerAmbeed
  • Product numberA317029
  • Product descriptionH-Trp-OH 98%
  • Packaging250mg
  • Price$5
  • Updated2021-12-16
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Manufacturer Product number Product description Packaging Price Updated Buy
Acrotein NA-0799 L-Tryptophan 97% 100g $31.17 2021-12-16 Buy
Acrotein NA-0799 L-Tryptophan 97% 1kg $275 2021-12-16 Buy
Activate Scientific AS33044-2S L-Tryptophan 97% ee 250g $58 2021-12-16 Buy
AK Scientific K248 L(-)-Tryptophan 5g $14 2021-12-16 Buy
AK Scientific K248 L(-)-Tryptophan 100g $41 2021-12-16 Buy
AK Scientific K248 L(-)-Tryptophan 500g $137 2021-12-16 Buy
AK Scientific K248 L(-)-Tryptophan 1kg $241 2021-12-16 Buy
Alfa Aesar J62508 L-Tryptophan, Cell Culture Reagent 10g $28.9 2024-03-01 Buy
Alfa Aesar A10230 L-Tryptophan, 99% 25g $45.7 2024-03-01 Buy
Alfa Aesar J22765 L-Tryptophan, 98.5-101.5% (dry basis), Affymetrix/USB 100g $100 2023-06-20 Buy
Alfa Aesar A10230 L-Tryptophan, 99% 100g $120 2024-03-01 Buy
Alfa Aesar J62508 L-Tryptophan, Cell Culture Reagent 100g $135 2024-03-01 Buy
Alfa Aesar A10230 L-Tryptophan, 99% 500g $436 2024-03-01 Buy
Alfa Aesar J62508 L-Tryptophan, Cell Culture Reagent 1kg $698 2024-03-01 Buy
Alfa Aesar J22765 L-Tryptophan, 98.5-101.5% (dry basis), Affymetrix/USB 1kg $842 2023-06-20 Buy
Ambeed A317029 H-Trp-OH 98% 250mg $5 2021-12-16 Buy

Properties

Melting point :289-290 °C (dec.)(lit.)
Boiling point :342.72°C (rough estimate)
alpha :-31.1 º (c=1, H20)
Density :1.34
refractive index :-32 ° (C=1, H2O)
storage temp. :2-8°C
solubility :20% NH3: 0.1 g/mL at 20 °C, clear, colorless
form :powder
pka :2.46(at 25℃)
color :White to yellow-white
PH :5.5-7.0 (10g/l, H2O, 20℃)
Odor :wh. cryst. or cryst. odorless powd., sl. bitter taste
optical activity :[α]20/D 31.5±1°, c = 1% in H2O
Water Solubility :11.4 g/L (25 ºC)
Merck :14,9797
BRN :86197
Stability :Stable. Incompatible with strong acids, strong oxidizing agents.
InChIKey :QIVBCDIJIAJPQS-VIFPVBQESA-N
LogP :0.704 (est)
CAS DataBase Reference :73-22-3(CAS DataBase Reference)
NIST Chemistry Reference :L-Tryptophan(73-22-3)
EPA Substance Registry System :L-Tryptophan (73-22-3)

Safety Information

Symbol(GHS): GHS hazard pictogramsGHS hazard pictograms
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger GHS hazard pictograms P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H290 May be corrosive to metals Corrosive to Metals Category 1 Warning GHS hazard pictograms P234, P390, P404
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger GHS hazard pictograms P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233 Keep container tightly closed.
P234 Keep only in original container.
P240 Ground/bond container and receiving equipment.
P241 Use explosion-proof electrical/ventilating/lighting/…/equipment.
P242 Use only non-sparking tools.
P243 Take precautionary measures against static discharge.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P363 Wash contaminated clothing before reuse.
P370+P378 In case of fire: Use … for extinction.
P390 Absorb spillage to prevent material damage.
P403+P235 Store in a well-ventilated place. Keep cool.
P405 Store locked up.
P406 Store in corrosive resistant/… container with a resistant inner liner.
P501 Dispose of contents/container to..…

Description

As an essential amino acid, L-Tryptophan is necessary for normal growth in infants and for nitrogen balance in adults, which cannot be synthesized from more basic substances in humans and other animals, suggesting that it is obtained only by intake of tryptophan or tryptophan-containing proteins for human body, which is particularly plentiful in chocolate, oats, milk, cottage cheese, red meat, eggs, fish, poultry, sesame, almonds, buckwheat, spirulina, and peanuts, etc. It can be used as a nutritional supplement for use as an antidepressant, anxiolytic, and sleep aid. Thus, L-Tryptophan can be used for depression, anxiety, sleep apnea, premenstrual syndrome and many other problems. Besides, it can also be used in managing pain tolerance and managing weight.
It works by increasing the levels of certain neurotransmitters in the brain called serotonin. People suffer from depression have an imbalance of serotonin and other brain chemicals. Thus, the increase of serotonin levels in the brain can improve symptoms of depression. L-Tryptopan serves as the precursor for the synthesis of serotonin, which is converted to serotonin in the body. As a result, the symptoms of depression and other problems are improved.

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