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Cas Database |
| Name |
1,1-Dimethylpropargylamine |
EINECS | 221-029-7 |
| CAS No. | 2978-58-7 | Density | 0.843 g/cm3 |
| PSA | 26.02000 | LogP | 1.05720 |
| Solubility | Very soluble in water. | Melting Point |
18°C |
| Formula | C5H9N | Boiling Point | 79.5 °C at 760 mmHg |
| Molecular Weight | 83.1332 | Flash Point | 2.2 °C |
| Transport Information | UN 2733 | Appearance | clear colorless to yellow liquid |
| Safety | 26-36/37/39-45-16 | Risk Codes | 36/37/38-34-22-11-43 |
| Molecular Structure |
|
Hazard Symbols |
 Xi, C, F
|
| Synonyms |
2-Propynylamine,1,1-dimethyl- (6CI,7CI,8CI);(1,1-Dimethyl-2-propyn-1-yl)amine;1,1-Dimethyl-2-propynylamine;1,1-Dimethylpropargylamine;2-Amino-2-methyl-3-butyne;2-Methyl-3-butyn-2-ylamine;3-Amino-3,3-dimethyl-1-propyne;3-Methyl-3-amino-1-butyne; |
Article Data | 14 |
1,1-Dimethylpropargylamine Chemical Properties
Molecule structure of 2-Methyl-3-butyn-2-amine (CAS NO.2978-58-7):
IUPAC Name: 2-Methylbut-3-yn-2-amine
Molecular Weight: 83.13166 g/mol
Molecular Formula: C5H9N
Form: clear colorless to yellow liquid
EINECS: 221-029-7
Density: 0.843 g/ml
Flash Point: 2.2 °C
Boiling Point: 79.5 °C
Storage Temp: flammables area
Index of Refraction: 1.451
Molar Refractivity: 26.54 cm3
Molar Volume: 98.5 cm3
Surface Tension: 31.8 dyne/cm
H-Bond Donor: 1
H-Bond Acceptor: 1
Rotatable Bond Count: 1
Exact Mass: 83.073499
MonoIsotopic Mass: 83.073499
Topological Polar Surface Area: 26
Heavy Atom Count: 6
Canonical SMILES: CC(C)(C#C)N
InChI: InChI=1S/C5H9N/c1-4-5(2,3)6/h1H,6H2,2-3H3
InChIKey: VUGCBIWQHSRQBZ-UHFFFAOYSA-N
Product Categories of 2-Methyl-3-butyn-2-amine (CAS NO.2978-58-7): Small molecule
1,1-Dimethylpropargylamine Toxicity Data With Reference
| 1. | eye-rbt 100 µL MOD | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) No. OTS0537061 . | ||
| 2. | orl-rat LD50:1470 mg/kg | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) No. OTS0537061 . |
1,1-Dimethylpropargylamine Safety Profile
Hazard Codes: 
Xi, 
C, 
F
Risk Statements: 36/37/38-34-22-11-43
R36/37/38:Irritating to eyes, respiratory system and skin.
R34:Causes burns.
R22:Harmful if swallowed.
R11:Highly flammable.
R43:May cause sensitization by skin contact.
Safety Statements: 26-36/37/39-45-16
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
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 the label whenever possible.)
S16:Keep away from sources of ignition.
RIDADR: UN 2733
RTECS: ER9543533
HazardClass: 3.1
PackingGroup: II
Moderately toxic by ingestion. A moderate eye irritant. When heated to decomposition it emits toxic vapors of NOx.
1,1-Dimethylpropargylamine Specification
2-Methyl-3-butyn-2-amine (CAS NO.2978-58-7) is also named as 1,1-Dimethylpropargylamine ; 1,1-Dimethylpropynylamine ; 3-Amino-3-methyl-1-butyne ; 30-D-11 ; 1,1-Dimethylprop-3-ynylamine ; 2-Propynylamine, 1,1-dimethyl- (6CI,7CI,8CI) ; 3-Butyn-2-amine, 2-methyl- .
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