5-METHYL-DL-TRYPTOPHAN

CAS No.：951-55-3

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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5-METHYL-DL-TRYPTOPHAN Basic information

Product Name:	5-METHYL-DL-TRYPTOPHAN
Synonyms:	TIMTEC-BB SBB003368;5-METHYL-DL-TRYPTOPHAN;H-Trp(5-Me)-OH;H-5-ME-DL-TRP-OH;DL-2-AMINO-3-(5-METHYLINDOLYL)PROPIONIC ACID;DL-5-METHYLTRYPTOPHAN;5-Methyl-DL-tryptophan,98%;5-METHYL-DL-TRYPTOPH
CAS:	951-55-3
MF:	C12H14N2O2
MW:	218.25
EINECS:	213-453-6
Product Categories:	Amino Acids;Biochemistry;Biological-modified Amino Acids;Indoles;Tryptophans;Amino acids methyl、ethyl、t-butyl series;Indoles and derivatives;I - ZPeptide Synthesis;Tryptophan Derivatives;Amino Acids;Modified Amino Acids;Unnatural Amino Acid Derivatives;Peptide Synthesis
Mol File:	951-55-3.mol

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
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 Information

Provider	Language
SigmaAldrich	English
ACROS	English

5-METHYL-DL-TRYPTOPHAN Usage And Synthesis

Chemical Properties

off-white powder

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 Preparation Products And Raw materials

Raw materials	5-Methylindole-->5-METHYLGRAMINE-->Ethyl acetamidoacetate-->Diethyl oxalate-->L-Serine
Preparation Products	5-METHYLTRYPTAMINE HYDROCHLORIDE

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