80-70-6

Name Tetramethylguanidine
CAS 80-70-6
EINECS(EC#) 201-302-7
Molecular Formula C5H13N3
MDL Number MFCD00008323
Molecular Weight 115.18
MOL File 80-70-6.mol
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Chemical Properties

Appearance Liquid
Melting point  -30 °C
Boiling point  162-163 °C (lit.)
density  0.918 g/mL at 25 °C(lit.)
vapor pressure  0.2 mm Hg ( 20 °C)
refractive index  n20/D 1.469
Fp  140 °F
storage temp.  2-8°C
solubility  Acetonitrile (Slightly), DMSO (Slightly), Methanol (Slightly)
form  Liquid
pka 15.20±0.70(Predicted)
color  APHA: ≤150
Odor mild ammoniacal odor
PH 12.7 (10g/l, H2O, 25℃)
Relative polarity 5.5
Stability: Stable. Combustible. Incompatible with strong oxidizing agents, mineral and organic acids, carbon dioxide. Air-sensitive.
explosive limit 1.0-7.5%(V)
Water Solubility  miscible
Sensitive  Air Sensitive
Usage Tetramethylguanidine (TMG) is used as polyurethane foam catalyst, as accelerator for the syntheses of polysulfured rubber, as a strong base in the photochemical (e.g. couplers) and in the pharmaceutical (e.g. steroids) industries. Product Data Sheet
BRN  969608
Dielectric constant 23.100000000000001
InChI 1S/C5H13N3/c1-7(2)5(6)8(3)4/h6H,1-4H3
InChIKey KYVBNYUBXIEUFW-UHFFFAOYSA-N
SMILES CN(C)C(=N)N(C)C
LogP -0.49 at 20℃
CAS DataBase Reference 80-70-6(CAS DataBase Reference)
NIST Chemistry Reference N,N,N',N'-Tetramethylguanidine(80-70-6)
EPA Substance Registry System 80-70-6(EPA Substance)
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Safety Data

Symbol(GHS)  Flame (GHS02)Corrosion (GHS05)Exclamation Mark (GHS07)
GHS02,GHS05,GHS07
Signal word  Danger
Hazard statements  H226-H290-H302-H314
Precautionary statements  P210-P233-P280-P301+P312-P303+P361+P353-P305+P351+P338
Hazard Codes  C
Risk Statements 
R22:Harmful if swallowed.
R34:Causes burns.
R20/22:Harmful by inhalation and if swallowed .
R10:Flammable.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S27:Take off immediately all contaminated clothing .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S16:Keep away from sources of ignition-No smoking .
RIDADR  UN 2920 8/PG 2
WGK Germany  1
F  9-23
Autoignition Temperature 222 °C
Hazard Note  Harmful/Corrosive
TSCA  Yes
REACH Registrations Active
HazardClass  8
PackingGroup  II
HS Code  29252000
Storage Class 3 - Flammable liquids
Hazard Classifications Acute Tox. 4 Oral
Eye Dam. 1
Flam. Liq. 3
Met. Corr. 1
Skin Corr. 1B
Toxicity
LD50 orally in Rabbit: 835 mg/kg

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Material Safety Data Sheet(MSDS)

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