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Protection of diols as their ethylidene acetals can be brought about in the presence of an acid catalyst; see, e.g.: Tetrahedron Lett., 27, 2539 (1986). The group is cleaved under acidic conditions: Carbohydr. Res., 4, 82 (1967); 38, 359 (1974). See also Acetaldehyde dimethyl acetal, A10939./n
Hazard Statements: H225-H303-H315-H319
Highly flammable liquid and vapour. May be harmful if swallowed. Causes skin irritation. Causes serious eye irritation.
Precautionary Statements: P210-P280a-P280a-P303+P361+P353-P305+P351+P338-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Wear protective gloves and eye/face protection. 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. Dispose of contents/container in accordance with local/regional/national/international regulations.