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Certificate of Analysis

Methyl propiolate, 99%

CAS: 922-67-8 MDL: MFCD00008572  EINECS: 213-083-5
UN#:UN3272Hazard Class:3Packing Group:II
Alternate Name: Methyl acetylenecarboxylate
Propiolic acid methyl ester


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Chemical Properties

Formula: HC≡CCO2CH3  Flash point: 10°(50°F)
Formula weight: 84.07  Density: 1.016
Boiling point: 98-101° Refractive Index: 1.4080

Literature References

For the conjugate addition of nitro-compounds, catalyzed by F-, see Nitroethane, A10855. For further reactions of propiolate esters, see Ethyl­ propiolate, A15068.

Other References

Beilstein: 605462
UN#: UN3272
Harmonized Tariff Code:   2916.19

GHS Hazard and Precautionary Statements

Hazard Statements : H225-H315-H319-H335

Highly flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements : P210-P261-P303+P361+P353-P305+P351+P338-P405-P501A

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

FlammableHarmful or Irritant

Risk & Safety

Risk Phrases: 11-36/37/38
Flammable. Irritating to eyes, respiratory system and skin.
Safety Phrases: 9-16-26-33-37-60
Keep container in a well ventilated place. Keep away from sources of ignition - No Smoking. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Take precautionary measures against static discharges. Wear suitable gloves. This material and/or its container must be disposed of as hazardous waste.
Irritant Highly Flammable
RTECS: UE0050000