Welcome to chemicalbook!
400-158-6606

Get started now

or
My Account
Buyers
Inquiry management
Suppliers
Quotation management
ChemicalBook >> CAS DataBase List >> D(+)-Tryptophan

D(+)-Tryptophan

D(+)-Tryptophan price.
  • $16.7 - $452
  • Product name: D(+)-Tryptophan
  • CAS: 153-94-6
  • MF: C11H12N2O2
  • MW: 204.23
  • EINECS:205-819-9
  • MDL Number:MFCD00005647
  • Synonyms:D-TRP;D(+)-TRYPTOPHAN;D-TRYPTOPHAN;D-TRYPTOPHANE;D-2-AMINO-3-(3-INDOLYL)PROPIONIC ACID;D-2-AMINO-3-INDOLEPROPIONIC ACID;D-2-AMINO-3-INDOLYLPROPANOIC ACID;D-ALPHA-AMINO-3-INDOLEPROPIONIC ACID
9 prices
Selected condition:

Brand

  • Alfa Aesar
  • Sigma-Aldrich
  • TCI Chemical

Package

  • 1g
  • 5g
  • 25g
  • 100g
  • ManufacturerAlfa Aesar
  • Product numberA18426
  • Product descriptionD-Tryptophan, 99%
  • Packaging5g
  • Price$26.9
  • Updated2018-11-13
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA18426
  • Product descriptionD-Tryptophan, 99%
  • Packaging25g
  • Price$103
  • Updated2018-11-13
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA18426
  • Product descriptionD-Tryptophan, 99%
  • Packaging100g
  • Price$303
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product numberT9753
  • Product descriptionD-Tryptophan ≥98.0% (HPLC)
  • Packaging100g
  • Price$452
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product numberT9753
  • Product descriptionD-Tryptophan ≥98.0% (HPLC)
  • Packaging1g
  • Price$16.7
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product numberT9753
  • Product descriptionD-Tryptophan ≥98.0% (HPLC)
  • Packaging5g
  • Price$42.8
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product numberT9753
  • Product descriptionD-Tryptophan ≥98.0% (HPLC)
  • Packaging25g
  • Price$171
  • Updated2018-11-13
  • Buy
  • ManufacturerTCI Chemical
  • Product numberT0539
  • Product descriptionD-Tryptophan >98.0%(HPLC)(T)
  • Packaging5g
  • Price$38
  • Updated2018-11-22
  • Buy
  • ManufacturerTCI Chemical
  • Product numberT0539
  • Product descriptionD-Tryptophan >98.0%(HPLC)(T)
  • Packaging25g
  • Price$114
  • Updated2018-11-22
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
Alfa Aesar A18426 D-Tryptophan, 99% 5g $26.9 2018-11-13 Buy
Alfa Aesar A18426 D-Tryptophan, 99% 25g $103 2018-11-13 Buy
Alfa Aesar A18426 D-Tryptophan, 99% 100g $303 2018-11-13 Buy
Sigma-Aldrich T9753 D-Tryptophan ≥98.0% (HPLC) 100g $452 2018-11-13 Buy
Sigma-Aldrich T9753 D-Tryptophan ≥98.0% (HPLC) 1g $16.7 2018-11-13 Buy
Sigma-Aldrich T9753 D-Tryptophan ≥98.0% (HPLC) 5g $42.8 2018-11-13 Buy
Sigma-Aldrich T9753 D-Tryptophan ≥98.0% (HPLC) 25g $171 2018-11-13 Buy
TCI Chemical T0539 D-Tryptophan >98.0%(HPLC)(T) 5g $38 2018-11-22 Buy
TCI Chemical T0539 D-Tryptophan >98.0%(HPLC)(T) 25g $114 2018-11-22 Buy

Properties

Melting point: :282-285 °C (dec.)(lit.)
alpha  :31.5 º (c=1, H2O 24 ºC)
Boiling point: :342.72°C (rough estimate)
Density  :1.1754 (rough estimate)
refractive index  :31 ° (C=1, H2O)
storage temp.  :Store at RT.
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
CAS DataBase Reference :153-94-6(CAS DataBase Reference)
EPA Substance Registry System :D-Tryptophan(153-94-6)

Safety Information

Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
Precautionary statements:

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.

Related product price