5-METHYL-DL-TRYPTOPHAN Chemical Properties

Melting point:

~275 °C (dec.)

Boiling point:

358.94°C (rough estimate)

alpha 

[α]D20 -1～+1゜ (c=1, dil. HCl)

Density 

1.1402 (rough estimate)

refractive index 

1.6660 (estimate)

storage temp. 

Sealed in dry,Room Temperature

form 

Powder

pka

2.26±0.10(Predicted)

color 

Off-white

BRN 

20225

CAS DataBase Reference

951-55-3(CAS DataBase Reference)

Safety Information

Safety Statements 

22-24/25

WGK Germany 

3

F 

8

HS Code 

29339900

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS

5-METHYL-DL-TRYPTOPHAN Usage And Synthesis

Chemical Properties

off-white powder

Definition

ChEBI: 5-methyltryptophan is a tryptophan derivative that is tryptophan substituted by a methyl group at position 5 of the indole ring. It is a non-proteinogenic alpha-amino acid and a tryptophan derivative.

Purification Methods

Crystallise dl-5-methyltryptophan from aqueous EtOH after dissolving it in aqueous NaOH, precipitating with AcOH, filtering the solid off and drying for 24hours at 50o. [Jackman & Archer J Am Chem Soc 68 2105 1946, Beilstein 22 IV 6815.] The picrate crystallises from MeOH with m 202o(dec). The N-phenylcarbamoyl derivative crystallises from aqueous MeOH with m 202o. [Gordon & Jackson J Biol Chem 110 151, 154 1935.]

5-METHYL-DL-TRYPTOPHAN(951-55-3)Related Product Information

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