Molekula
3,5-Dimethylpyrazole
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
3,5-Dimethylpyrazole is a heterocyclic organic compound primarily used as a blocking agent for isocyanates in polyurethane coatings and as a precursor to pyrazolylborate and other pyrazolyl ligands in coordination chemistry. It also serves as an intermediate in pharmaceutical and agrochemical synthesis. CAS 67-51-6, molecular formula C5H8N2, molecular weight 96.13 g/mol. Stored at ambient conditions. Signal word: Warning. Molekula supplies 3,5-Dimethylpyrazole from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
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100 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Off white powder |
| Melting Point | 108 - 109 Deg C |
| Moisture | <0.5% |
| Content | >99.5% HPLC |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.14 mmHg |
Source: PubChem CID 6210 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 35691665 |
| CAS Number | 67-51-6 |
| IUPAC Name | 3,5-dimethyl-1H-pyrazole |
| EC Number | 200-657-5 |
| Molecular Formula | C5H8N2 |
| Molecular Weight | 96.13 |
| Exact Mass | 96.0687 |
| SMILES | CC1=CC(=NN1)C |
| InChIKey | SDXAWLJRERMRKF-UHFFFAOYSA-N |
| InChI | InChI=1S/C5H8N2/c1-4-3-5(2)7-6-4/h3H,1-2H3,(H,6,7) |
| PubChem CID | 6210 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933.19.9000 |
| Tariff Code | 2933199090 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H361 Suspected of damaging fertility or the unborn child
- H373 May cause damage to organs through prolonged or repeated exposure
Precautionary statements
- P201 Obtain special instructions before use
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1H-Pyrazole, 3,5-dimethyl-
- 3,5 DMP
- 3,5-Dimethyl-1H-pyrazole
- 3,5-Dwumetylopirazolu
- dimethylpyrazole
- PYRAZOLE, 3,5-DIMETHYL-
- Pyrazole,5-dimethyl-
- TH 564
- TRIXENE DP 8692
- U 6245
Frequently asked questions
What is 3,5-Dimethylpyrazole commonly used for?
3,5-Dimethylpyrazole is primarily used as a blocking agent for isocyanates in polyurethane coatings, a precursor to pyrazolylborate and pyrazolyl ligands in coordination chemistry, a stabilizer in organic synthesis, and as a building block in pharmaceutical and agrochemical intermediates.
What is the chemical formula and molecular weight of 3,5-Dimethylpyrazole?
The chemical formula is C5H8N2, and the molecular weight is 96.13 g/mol.
How should 3,5-Dimethylpyrazole be stored?
Store in a tightly sealed container at ambient temperature, away from sources of ignition and incompatible materials.
What grades or purities of 3,5-Dimethylpyrazole does Molekula supply?
Molekula supplies technical grade and high-purity (HPLC/ACS grade) 3,5-Dimethylpyrazole, depending on application requirements.
Can Molekula supply 3,5-Dimethylpyrazole in bulk quantities?
Yes, Molekula can supply bulk quantities of 3,5-Dimethylpyrazole, with minimum order quantities (MOQs) available upon request.
What documentation comes with an order of 3,5-Dimethylpyrazole?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.