Skip to Content
Merck
All Photos(1)

Key Documents

8.05859

Sigma-Aldrich

1-Methylpiperazine

for synthesis

Synonym(s):

1-Methylpiperazine, N-Methylpiperazine

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C5H12N2
CAS Number:
Molecular Weight:
100.16
MDL number:
UNSPSC Code:
12352005
EC Index Number:
203-639-5
NACRES:
NA.22

vapor pressure

12 hPa ( 20 °C)

Quality Level

Assay

≥99.0% (GC)

form

liquid

autoignition temp.

320 °C

potency

2547 mg/kg LD50, oral (Rat)
1341 mg/kg LD50, skin (Rabbit)

expl. lim.

1.2-9.9 % (v/v)

pH

11-12 (20 °C, 50 g/L in H2O)

bp

136-138 °C/1013 hPa

mp

-6 °C

transition temp

flash point 34 °C

density

0.90 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C5H12N2/c1-7-4-2-6-3-5-7/h6H,2-5H2,1H3

InChI key

PVOAHINGSUIXLS-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.901 - 0.903
Water (K. F.): ≤ 0.30 %
Identity (IR): passes test

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Dermal - Flam. Liq. 3 - Skin Corr. 1B

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

102.2 °F - closed cup

Flash Point(C)

39 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service