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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
melting point/freezing point
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
Please refer to QPRF/QMRF documentation for detailed information on model suitability.

Data source

Referenceopen allclose all

Reference Type:
other: Estimation software
Title:
Estimation Programs Interface Suite for Microsoft Windows, v4.11
Author:
US EPA
Year:
2012
Bibliographic source:
United States Environmental Protection Agency, Washington DC, USA; November 2012
Reference Type:
publication
Title:
A Unified Approach to Physical Property Estimation Using Multivariate Statistical Techniques.
Author:
Joback K.G.
Year:
1982
Bibliographic source:
Stevens Institute of Technology, submitted to the Dept. of Chem. Eng. for M.S. Degree at the Massachusetts Institute of Technology in June 1984.

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Guidance on information requirements and chemical safety assessment Chapter R.6: QSARs and grouping of chemicals
Version / remarks:
May 2008
Principles of method if other than guideline:
QSAR prediction using MPBPVP (v1.43) of EpiSuite v4.1. QSAR calculation is based on the weighted value of the adapted Jaback Method, Gold and Ogle Method and Joback; Gold, Ogle Methods.
GLP compliance:
no
Type of method:
other: QSAR calculation

Test material

Constituent 1
Chemical structure
Reference substance name:
L-Histidine Hydrochloride Monohydrate
EC Number:
611-821-4
Cas Number:
5934-29-2
Molecular formula:
C6-H9-N3-O2.Cl-H.H2-O
IUPAC Name:
L-Histidine Hydrochloride Monohydrate
Test material form:
solid: crystalline
Specific details on test material used for the study:
SMILES : O=C(O)C(N)Cc(ncn1)c1

Results and discussion

Melting / freezing point
Key result
Decomposition:
yes
Decomp. temp.:
287 °C
Remarks on result:
other: Exp. MP

Any other information on results incl. tables

See QPRF/QMRF

Applicant's summary and conclusion

Conclusions:
The substance decomposes at 287 deg C.
Executive summary:

The substance decomposes at 287 deg C.