HISTIDINE, DL-

Details

Stereochemistry	RACEMIC
Molecular Formula	C6H9N3O2
Molecular Weight	155.1546
Optical Activity	( + / - )
Defined Stereocenters	0 / 1
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

NC(CC1=CNC=N1)C(O)=O

InChI

InChIKey=HNDVDQJCIGZPNO-UHFFFAOYSA-N

InChI=1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)

HIDE SMILES / InChI

Molecular Formula	C6H9N3O2
Molecular Weight	155.1546
Charge	0
Count

Stereochemistry	RACEMIC
Additional Stereochemistry	No
Defined Stereocenters	0 / 1
E/Z Centers	0
Optical Activity	( + / - )

Description
Sources: http://www.jbc.org/content/171/1/247.full.pdf | https://www.ncbi.nlm.nih.gov/pubmed/15476974

Histidine racemate is a mixture of naturally occurring essential amino acid L-histidine and its enantiomer D-histidine. D-histidine is less readily utilized than the natural isomer. It is not metabolized by histidase and is not readily oxidized by D-amino acid oxidase. Some fungi incorporate D-histidine into proteins as a measure of protection against hydrolases and to enhance antimicrobial activity.

Approval Year

Patents

Substance Class	Chemical Created by `admin` on `Mon Mar 31 17:33:28 GMT 2025` Edited by `admin` on `Mon Mar 31 17:33:28 GMT 2025`
Record UNII	QU6SDF3Q03
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

1H-IMIDAZOLE-4-ALANINE

Preferred Name

English

HISTIDINE, DL-

Systematic Name

English

DL-2-AMINO-3-(4-IMIDAZOLYL)PROPIONSAEURE

Common Name

English

(±)-HISTIDINE

Systematic Name

English

DL-HISTIDINE

Systematic Name

English

Classification Tree Code System Code

CFR

21 CFR 862.1375