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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: authoritative secondary source

Data source

Reference
Reference Type:
review article or handbook
Title:
Hawley's Condensed Chemical Dictionary, 14th Edition
Author:
Lewis, Richard J., Sr.
Year:
2002
Bibliographic source:
Copyright ©2002 by John Wiley & Sons, Inc.; online query 07 Jan 2008

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
visual inspection
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Pyrazole
EC Number:
206-017-1
EC Name:
Pyrazole
Cas Number:
288-13-1
Molecular formula:
C3H4N2
IUPAC Name:
1H-pyrazole
Test material form:
solid: crystalline
Details on test material:
Name of test material (as cited in study report): pyrazole
Analytical purity: pure (not indicated)

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Form / colour / odour
Form:
crystalline
Colour:
off-white
Odour:
other: pyridine odour
Substance type:
organic

Applicant's summary and conclusion