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3,5-Dimethyl-1H-pyrazole, 99%, Thermo Scientific Chemicals
Description
3,5-Dimethyl-1H-pyrazole is combined with Chromium(VI) oxide, is a valuable reagent for oxidation of primary and secondary alcohols to carbonyl compounds. It reacts with malonic esters gives a family of cross-conjugated monomeric betaines. It is a common reagent for the preparation of pyrazolato ligated complexes. It is also used to prepare N-1-substituted derivatives having antibacterial activity.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
3,5-Dimethyl-1H-pyrazole is combined with Chromium(VI) oxide, is a valuable reagent for oxidation of primary and secondary alcohols to carbonyl compounds. It reacts with malonic esters gives a family of cross-conjugated monomeric betaines. It is a common reagent for the preparation of pyrazolato ligated complexes. It is also used to prepare N-1-substituted derivatives having antibacterial activity.
Solubility
Soluble in water, methanol 0.1 g/mL.
Notes
Store away from oxidizing agents. Store in a cool, dry condition in well sealed containers.

Specifications
Specifications
Melting Point | 105°C to 108°C |
pH | 6.7 |
Boiling Point | 218°C |
Quantity | 50 g |
Beilstein | 106325 |
Solubility Information | Soluble in water,methanol 0.1g/mL. |
Formula Weight | 96.13 |
Percent Purity | 99% |
Chemical Name or Material | 3,5-Dimethyl-1H-pyrazole |
Certificates
Certificates
A lot number is required to show results for certificates. To find your lot number on previous orders use our order status area.
Lot Number | Certificate Type | Date | Catalog Number |
---|---|---|---|
10245100 | Certificate of Analysis | 24/10/2023 | A10157.18,A10157.0B,A10157.30 |
10224854 | Certificate of Analysis | 22/11/2021 | A10157.18,A10157.0B,A10157.30 |
D5245A | Certificate of Analysis | 22/11/2021 | A10157.18,A10157.0B,A10157.30 |
10174410 | Certificate of Analysis | 22/11/2021 | A10157.18,A10157.0B,A10157.30 |
1692 | Certificate of Analysis | 22/11/2021 | A10157.18,A10157.0B,A10157.30 |
Safety and Handling


- 3,5-Dimethyl-1H-pyrazole
- Warning
- Acute toxicity Category 4
- Reproductive toxicity Category 2
- Specific target organ toxicity after repeated exposure Category 2
- H302-Harmful if swallowed.
- H361fd-Suspected of damaging fertility. Suspected of damaging the unborn child.
- H373-May cause damage to organs.
- P201-Obtain special instructions before use.
- P260-Do not breathe dust/fume/gas/mist/vapours/spray.
- P264-Wash face, hands and anyexposed skin thoroughly after handling.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P301+P312-IF SWALLOWED: Call a POISON CENTER or doctor/physician/ if you feel unwell.
- P302+P352-IF ON SKIN: Wash with plenty of water/soap.
- P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P308+P313-IF exposed or concerned: Get medical advice/attention.
- MIXTURE LIST-Contains : 3,5-Dimethyl-1H-pyrazole
RUO – Research Use Only
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