CAS No.624-67-9,PROPYNAL Suppliers

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Basic Information

Molecular Structure:
CAS No.:	624-67-9
Name:	PROPYNAL
Article Data:	54

Formula:	C3H2 O
Molecular Weight:	54.0483
Synonyms:	Propiolaldehyde(6CI,7CI,8CI); 2-Propyn-1-one; Acetylenecarboxaldehyde; Formylacetylene;Propargylaldehyde; Propiolic aldehyde; Propynal
Density:	0.913g/cm³
Melting Point:	121-122 °C
Boiling Point:	60°C at 760 mmHg
Flash Point:	4.8°C
Risk Codes:	R10
Safety:	Mutation data reported. A storage hazard especially in glass. Explosive reaction with pyridine. Violent polymerization reaction on contact with alkalies. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.
PSA:	17.07000
LogP:	-0.18150

Synthetic route

: 10-(1-methoxy-2-propynyl)phenothiazine

A: 624-67-9
Propargylic aldehyde

B: 92-84-2
10H-phenothiazine

Conditions

Conditions	Yield
With sulfuric acid In 1,4-dioxane at 18℃;	A n/a B 95%

: 107-19-7
propargyl alcohol

: 624-67-9
Propargylic aldehyde

Conditions

Conditions	Yield
With chromium(VI) oxide; sulfuric acid In water; butanone at 20 - 25℃; for 5h;	91%
With chromium(VI) oxide; sulfuric acid In water; butanone at 20 - 25℃; under 760.051 Torr; for 1h;	90%
With C6H12N22ClCrO3(1-)2H(1+) In dichloromethane at 20℃; for 2h;	85%

: 9-(1-methoxy-2-propynyl)carbazole

A: 624-67-9
Propargylic aldehyde

B: 86-74-8
9H-carbazole

Conditions

Conditions	Yield
With sulfuric acid In 1,4-dioxane at 18℃;	A n/a B 84%

: 6921-27-3
dipropargyl ether

A: 624-67-9
Propargylic aldehyde

B: 463-49-0
1,2-propanediene

Conditions

Conditions	Yield
at 750℃; under 0.001 - 0.01 Torr;	A 80% B n/a

: 19012-03-4
N-methyl-3-formylindole

: 4301-14-8
acetylenemagnesium bromide

A: 624-67-9
Propargylic aldehyde

B: 3,3'-(prop-2-yne-1,1-diyl)bis(1-methyl-1H-indole)

Conditions

Conditions	Yield
In tetrahydrofuran at 0℃; for 12h;	A n/a B 68%

...Expand

: 62842-54-0
DL-erythro-pentyne-(1)-triol-(3.4.5)

: 624-67-9
Propargylic aldehyde

Conditions

Conditions	Yield
With sodium periodate; water

: 5651-88-7
phenyl propargyl sulfide

: 624-67-9
Propargylic aldehyde

Conditions

Conditions	Yield
With tert-butylhypochlorite In ethanol

: 35161-71-8
N-methylpropargylamine

: 624-67-9
Propargylic aldehyde

Conditions

Conditions	Yield
Yield given. Multistep reaction;

: 1197-51-9
N-propargylbenzylamine

A: 624-67-9
Propargylic aldehyde

B: 100-52-7
benzaldehyde

Conditions

Conditions	Yield
Yield given. Multistep reaction. Yields of byproduct given;

: 2798-73-4, 3685-19-6, 3685-20-9
(Z)-1-methoxybut-1-en-3-yne

A: 624-67-9
Propargylic aldehyde

B: 107-31-3
Methyl formate

Conditions

Conditions	Yield
With air In chloroform-d1 for 1440h; Product distribution; Ambient temperature; daylight;

Raw Materials

68-12-2

627-41-8

74-86-2

Downstream Products

74-86-2

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Chemistry

IUPAC Name: Prop-2-ynal
Synonyms: Propynal ; 2-Propynal ; Propiolaldehyde ; Propioaldehyde ; Propynal tec ; 2-Propyn-1-al ; 2-Propyne-1-one ; Propiolic aldehyde
CAS NO: 624-67-9
Molecular Formula: C₃H₂O
Molecular Weight: 54.04738
Molecular Structure:
EINECS: 210-857-4
Mol File: 624-67-9.mol
Index of Refraction: 1.388
Surface Tension: 30.8 dyne/cm
Density: 0.913 g/cm³
Flash Point: 4.8 °C
Enthalpy of Vaporization: 30.25 kJ/mol
Boiling Point: 60 °C at 760 mmHg
Vapour Pressure: 196 mmHg at 25°C
Appearance: Propiolaldehyde (CAS NO.624-67-9) is colorless oily liquid.

Uses

Propiolaldehyde (CAS NO.624-67-9) is used as reagents in organic synthesis.

Production

1.Propiolaldehyde (CAS NO.624-67-9) can be obtained by oxidation of propargyl alcohol by Chromium trioxide sulfuric acid solution.
2.After Acrolein acetal, addition reaction by Bromide , elimination of Hydrogen bromide and Hydrolysis,then get Propiolaldehyde (CAS NO.624-67-9).

Toxicity Data With Reference

mmo-sat 1 µmol/plate

PAACA3 Proceedings of the American Association for Cancer Research. 24 (1983),91.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Mutation data reported. A storage hazard especially in glass. Explosive reaction with pyridine. Violent polymerization reaction on contact with alkalies. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.
Risk Statements 10
R10:Flammable.
Safety Statements 16
S16:Keep away from sources of ignition.
RIDADR 1989