Molekula
1-Methylpiperazine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
1-Methylpiperazine is a heterocyclic organic compound used as an intermediate in pharmaceutical and agrochemical synthesis. It acts as a building block in the development of active ingredients and specialty chemicals. Available as a liquid with a purity of ≥98%, it has a CAS number of 109-01-3, molecular formula C5H12N2, and molecular weight of 100.16 g/mol. Store at ambient temperature. Molekula supplies 1-Methylpiperazine 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
In stock — same-day dispatch
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.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 kg — £93.30 per pack ex VAT · £111.96 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | clear liquid |
| Water | ≤0.5% (KF) |
| Purity | ≥99.5% (GC) |
| Piperazine | ≤0.1% (GC) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 39 °C |
| Transport Class | 8 (3) |
| Packing Group | II |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 3 mmHg |
Source: PubChem CID 53167 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 56338967 |
| CAS Number | 109-01-3 |
| IUPAC Name | 1-methylpiperazine |
| EC Number | 203-639-5 |
| Molecular Formula | C5H12N2 |
| Molecular Weight | 100.16 |
| Exact Mass | 100.1 |
| SMILES | CN1CCNCC1 |
| InChIKey | PVOAHINGSUIXLS-UHFFFAOYSA-N |
| InChI | InChI=1S/C5H12N2/c1-7-4-2-6-3-5-7/h6H,2-5H2,1H3 |
| PubChem CID | 53167 |
| UN Number | UN2734 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29335995 |
| Tariff Code | 2933599590 |
Safety & GHS
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Flammable
GHS02
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Corrosive
GHS05
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Toxic
GHS06
Hazard statements
- H226 Flammable liquid and vapour
- H302 Harmful if swallowed
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H317 May cause an allergic skin reaction
- H331 Toxic if inhaled
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P284 Wear respiratory protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- 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, English (US), 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 1-methylpyperazine
- 4-Methylpiperazine
- METHYLPIPERAZINE
- N-mehylpiperazine
- N-Methylpiperazin
- N-Methylpiperazine
- N-methylpiperzine
- PIPERAZINE, 1-METHYL-
- Piperazine, methyl-
- WLN: T6M DNTJ D1
Frequently asked questions
What is 1-Methylpiperazine used for?
It is commonly used as a building block in pharmaceutical synthesis and as a catalyst in polymerization reactions.
What is the chemical formula and molecular weight of 1-Methylpiperazine?
The formula is C5H12N2 and the molecular weight is 100.16 g/mol.
How should 1-Methylpiperazine be stored?
It should be stored at ambient temperature, away from moisture and incompatible materials.
What grade of 1-Methylpiperazine does Molekula supply?
Molekula supplies 1-Methylpiperazine in technical grade; custom grades available upon request.
Can Molekula supply 1-Methylpiperazine in bulk?
Yes, Molekula can supply 1-Methylpiperazine in bulk quantities; please contact sales for pricing and availability.
What documentation comes with an order of 1-Methylpiperazine?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation available upon request.
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.