Registration Dossier
Registration Dossier
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EC number: 200-657-5 | CAS number: 67-51-6
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The melting point is just cited in a publication where 3,5-dimethylpyrazole is synthesized.
- GLP compliance:
- no
- Type of method:
- other: Melting points were determined using on veego melting point apparatus and were uncorrected.
- Specific details on test material used for the study:
- Formula: C5H8N2
MW: 96.13
IR (KBr disc) υmax (cm-1): 3384 (NH), 1620.45 (C=N), 1512.22 (N-N), 1476 (CH3)
1H NMR (DMSO-d6) δ (ppm): 2.34 (s, CH3), 2.72 (s, CH3), 5.86 (s, CH pyrazole), 13.4 (s, NH) - Melting / freezing pt.:
- 88 °C
- Remarks on result:
- other: MP is only cited without any other details
- Conclusions:
- The melting point of 3,5-dimethylpyrazole is just cited as 88°C in a publication where the substance is synthesized.
- Executive summary:
The melting point of 3,5-dimethylpyrazole is just cited as 88°C in a publication where the substance is synthesized.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The melting point is just cited in a publication where 3,5-dimethylpyrazole is synthesized.
- GLP compliance:
- no
- Type of method:
- other: not specified
- Melting / freezing pt.:
- >= 107 - <= 107.5 °C
- Remarks on result:
- other: MP has been used to estabish purity of 3,5-dimethylpyrazole
- Conclusions:
- Melting point of 3,5-dimethylpyrazole has been determined as 107-170.5°C in a metabolism study in rat.
- Executive summary:
Melting point of 3,5-dimethylpyrazole has been determined as 107-170.5°C in a metabolism study in rat.
Referenceopen allclose all
Description of key information
The melting point of 3,5-dimethylpyrazole is just cited as 88°C in a publication where the substance is synthesized.
Melting point of 3,5-dimethylpyrazole has been determined as 107-170.5°C in a metabolism study in rat.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 107 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
