C5H12N2
100.16 g/mol
Pharmaceutical IntermediateDanger
1-Methylpiperazine
CAS109-01-3EC203-639-5
Category
Pharmaceutical Intermediate
Compound Class
Amine
Primary Use
Pharmaceutical Intermediate
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
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Referencestereoisomer of
N-Methyl-d3-Piperazine
CAS1093380-08-5
research compound
Referencestereoisomer of
1-methylpiperazine-2,2,3,3,5,5,6,6-d8
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research compound
Safety Reference
Danger
H226Flammable liquid and vapour
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H318Causes serious eye damage
H330Fatal if inhaled
H331Toxic if inhaled
H332Harmful if inhaled
Customs Tariff Classification
The international HS code for 1-Methylpiperazine (CAS 109-01-3) is 2933.59.
HS code (international, 6-digit)
2933.59
EU CN code (8-digit)
2933 59 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1-methylpiperazine
InChIKey
PVOAHINGSUIXLS-UHFFFAOYSA-N
SMILES
CN1CCNCC1
Synonyms (33)
- Cyclizine impurity A, European Pharmacopoeia (EP)
- Imatinib Impurity 15; Chlorcyclizine EP Impurity A; Cyclizine hydrochloride EP Impurity A; Diethylcarbamazine citrate EP Impurity A; Pirenzepine EP Impurity D
- 1-METHYL-1,4-PIPERAZINE
- 1-Methylpiperazine
- 1-methylpiperazin
- 1-methylpiperizine
- 1-methylpiprazine
- 1-methylpyperazine
- 1-methypiperazine
- 4-Methylpiperazine
- 4-N-methyl-piperazin
- 4-N-methyl-piperazine
- 4-methylpiperazin
- 4-methylpiperizine
- Cyclizine impurity A CRS
- Cyclizine related ocmpound A
- Monomethylpiperazine
- N-Methylpiperazin
- N-Methylpiperazine
- N-mehylpiperazine
- N-methylpiperizine
- N-methylpiperzine
- N-methylpiprazine
- N-methylpyperazine
- N-methypiperazine
- N-rnethylpiperazine
- PIPERAZINE, 1-METHYL-
- Piperazine, methyl-
- methyl piperazine
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