Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Appearance / physical state / colour

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Administrative data

Link to relevant study record(s)

appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Reason / purpose for cross-reference:
reference to other study
no guideline followed
Principles of method if other than guideline:
Appearance information is obtained from the observations on the test material used for relative density testing.
GLP compliance:
not specified
Physical state at 20°C and 1013 hPa:
solid: crystalline
Substance type:
L-Histidine is a white crystalline powder.
Executive summary:

The information on the appearance of the substance L-histidine is obtained from observations made on the test sample used for the determination of the density of L-histidine.

L-Histidine is found to be a white crystalline powder.

Description of key information

L-histidine is a white crystalline powder.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:

Additional information