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ChemicalBook >> CAS DataBase List >> D(+)-Tryptophan

D(+)-Tryptophan

D(+)-Tryptophan price.
  • $5 - $49488
  • Product name: D(+)-Tryptophan
  • CAS: 153-94-6
  • MF: C11H12N2O2
  • MW: 204.23
  • EINECS:205-819-9
  • MDL Number:MFCD00005647
  • Synonyms:D(+)-TRYPTOPHAN;D-TRYPTOPHANE;D-2-AMINO-3-INDOLEPROPIONIC ACID;D-2-AMINO-3-INDOLYLPROPANOIC ACID;D-ALPHA-AMINO-3-INDOLEPROPIONIC ACID;D-A-AMINO-3-INDOLEPROPIONIC ACID;D-TRYPTOPHAN, 99+% (99% EE/GLC);D-TRYPTOPHAN, H-D-TRP-OH
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  • ManufacturerACHEMBLOCK
  • Product numberL13798
  • Product description(2R)-2-Amino-3-(1H-indol-3-yl)propanoicacid 97%
  • Packaging5G
  • Price$150
  • Updated2021-12-16
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  • ManufacturerAcrotein
  • Product numberNA-0105
  • Product descriptionD-Tryptophan 97%
  • Packaging250g
  • Price$133.83
  • Updated2021-12-16
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  • ManufacturerActivate Scientific
  • Product numberAS33044-2R
  • Product descriptionD-Tryptophan 97+%
  • Packaging25g
  • Price$35
  • Updated2021-12-16
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  • ManufacturerActivate Scientific
  • Product numberAS33044-2R
  • Product descriptionD-Tryptophan 97+%
  • Packaging100g
  • Price$88
  • Updated2021-12-16
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  • ManufacturerAHH
  • Product numberMT-11636
  • Product descriptionH-D-Typ-OH 99%
  • Packaging100000g
  • Price$49488
  • Updated2021-12-16
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  • ManufacturerAK Scientific
  • Product numberJ92588
  • Product descriptionD-Tryptophan
  • Packaging1kg
  • Price$400
  • Updated2021-12-16
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  • ManufacturerAlfa Aesar
  • Product numberA18426
  • Product descriptionD-Tryptophan, 99%
  • Packaging5g
  • Price$38.2
  • Updated2024-03-01
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  • ManufacturerAlfa Aesar
  • Product numberA18426
  • Product descriptionD-Tryptophan, 99%
  • Packaging25g
  • Price$115.65
  • Updated2024-03-01
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  • ManufacturerAlfa Aesar
  • Product numberA18426
  • Product descriptionD-Tryptophan, 99%
  • Packaging100g
  • Price$337.65
  • Updated2024-03-01
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  • ManufacturerAmbeed
  • Product numberA101619
  • Product descriptionH-D-Trp-OH 97%
  • Packaging5g
  • Price$5
  • Updated2021-12-16
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  • ManufacturerAmbeed
  • Product numberA101619
  • Product descriptionH-D-Trp-OH 97%
  • Packaging10g
  • Price$7
  • Updated2021-12-16
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  • ManufacturerAmbeed
  • Product numberA101619
  • Product descriptionH-D-Trp-OH 97%
  • Packaging25g
  • Price$11
  • Updated2021-12-16
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  • ManufacturerAmbeed
  • Product numberA101619
  • Product descriptionH-D-Trp-OH 97%
  • Packaging100g
  • Price$37
  • Updated2021-12-16
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  • ManufacturerAmbeed
  • Product numberA101619
  • Product descriptionH-D-Trp-OH 97%
  • Packaging500g
  • Price$123
  • Updated2021-12-16
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  • ManufacturerAmbeed
  • Product numberA101619
  • Product descriptionH-D-Trp-OH 97%
  • Packaging1kg
  • Price$200
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberAAA0035203
  • Product descriptionD-TRYPTOPHAN 95.00%
  • Packaging5G
  • Price$750
  • Updated2021-12-16
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Manufacturer Product number Product description Packaging Price Updated Buy
ACHEMBLOCK L13798 (2R)-2-Amino-3-(1H-indol-3-yl)propanoicacid 97% 5G $150 2021-12-16 Buy
Acrotein NA-0105 D-Tryptophan 97% 250g $133.83 2021-12-16 Buy
Activate Scientific AS33044-2R D-Tryptophan 97+% 25g $35 2021-12-16 Buy
Activate Scientific AS33044-2R D-Tryptophan 97+% 100g $88 2021-12-16 Buy
AHH MT-11636 H-D-Typ-OH 99% 100000g $49488 2021-12-16 Buy
AK Scientific J92588 D-Tryptophan 1kg $400 2021-12-16 Buy
Alfa Aesar A18426 D-Tryptophan, 99% 5g $38.2 2024-03-01 Buy
Alfa Aesar A18426 D-Tryptophan, 99% 25g $115.65 2024-03-01 Buy
Alfa Aesar A18426 D-Tryptophan, 99% 100g $337.65 2024-03-01 Buy
Ambeed A101619 H-D-Trp-OH 97% 5g $5 2021-12-16 Buy
Ambeed A101619 H-D-Trp-OH 97% 10g $7 2021-12-16 Buy
Ambeed A101619 H-D-Trp-OH 97% 25g $11 2021-12-16 Buy
Ambeed A101619 H-D-Trp-OH 97% 100g $37 2021-12-16 Buy
Ambeed A101619 H-D-Trp-OH 97% 500g $123 2021-12-16 Buy
Ambeed A101619 H-D-Trp-OH 97% 1kg $200 2021-12-16 Buy
American Custom Chemicals Corporation AAA0035203 D-TRYPTOPHAN 95.00% 5G $750 2021-12-16 Buy

Properties

Melting point :282-285 °C (dec.)(lit.)
Boiling point :342.72°C (rough estimate)
alpha :31.5 º (c=1, H2O 24 ºC)
Density :1.1754 (rough estimate)
refractive index :31 ° (C=1, H2O)
storage temp. :Keep in dark place,Inert atmosphere,Room temperature
solubility :Aqueous Base (Slightly), DMSO (Slightly, Heated, Sonicated), Methanol (Slightly)
pka :2.30±0.10(Predicted)
form :Powder
color :White to slightly yellow
Water Solubility :11 g/L (20 ºC)
BRN :86198
Stability :Stable. Incompatible with oxidizing agents.
InChIKey :QIVBCDIJIAJPQS-SECBINFHSA-N
LogP :0.704 (est)
CAS DataBase Reference :153-94-6(CAS DataBase Reference)
EPA Substance Registry System :D-Tryptophan (153-94-6)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning GHS hazard pictograms
Precautionary statements:
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

D-tryptophan (Full name D (+)-Tryptophan) is a white to pale yellow or white crystalline powder at room temperature, odorless or slight odor, slightly sweet taste. Solubility in water is 1.14 g (25 ℃), soluble in dilute acid and alkali, stable in alkali, decomposed in strong acid, slightly soluble in ethanol, not soluble in chloroform, ethyl ether. It plays an important role for human and animal growth and development, metabolism, known as the second essential amino acids. They are almost identical with L-type and physical and chemical properties, and only the optical activity is opposite. But their distribution, function and coenzyme have diversity. Its melting point is very high, generally above 200 degrees. It can dissolve in water, and in the near UV region it has the ability to absorb light.
Tryptophan is one of the 20 standard amino acids, as well as an essential amino acid in the human diet. It is encoded in the standard genetic code as the codon UGG. the D-stereoisomer is occasionally found in naturally produced peptides (for example, the marine venom peptide contryphan). The distinguishing structural characteristic of tryptophan is that it contains an indole functional group. It is an essential amino acid as defined by its growth effects on rats.

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