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822011 Dehydroacetic acid

822011
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Overview

Replacement Information

Key Specifications Table

CAS #EC NumberHill FormulaMolar Mass
520-45-6208-293-9C₈H₈O₄168.2 g/mol

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              Description
              Catalogue Number822011
              Synonyms3-Acetyl-3,4-dihydro-6-methyl-2H-pyran-2,4-dione
              References
              Product Information
              CAS number520-45-6
              EC index number607-163-00-2
              EC number208-293-9
              Hill FormulaC₈H₈O₄
              Molar Mass168.2 g/mol
              HS Code2932 20 90
              Structure formula ImageStructure formula Image
              Quality LevelMQ200
              Applications
              ApplicationDehydroacetic acid for synthesis. CAS 520-45-6, pH 4 (2 g/l, H₂O, 20 °C).
              Biological Information
              Physicochemical Information
              Boiling point270 °C (1013 hPa)
              Flash point157 °C
              Ignition temperature336 °C
              Melting Point111.1 - 111.3 °C
              pH value4 (2 g/l, H₂O, 20 °C)
              Vapor pressure<0.1 hPa (25 °C)
              Bulk density700 kg/m3
              Solubility2 g/l
              Dimensions
              Materials Information
              Toxicological Information
              LD 50 oralLD50 Rat 1000 mg/kg
              Safety Information according to GHS
              Hazard Pictogram(s) Hazard Pictogram(s)
              Hazard Statement(s)H302: Harmful if swallowed.
              Precautionary Statement(s)P264: Wash skin thoroughly after handling.
              P270: Do not eat, drink or smoke when using this product.
              P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.
              P501: Dispose of contents/ container to an approved waste disposal plant.
              Signal WordWarning
              RTECSUP8050000
              Storage class10 - 13 Other liquids and solids
              WGKWGK 1 slightly hazardous to water
              Disposal3
              Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
              Safety Information
              Categories of dangerharmful
              Product Usage Statements
              Storage and Shipping Information
              StorageStore below +30°C.
              Packaging Information
              Transport Information
              Supplemental Information
              Specifications
              Assay (acidimetric)≥ 98.5 %
              Melting range (lower value)≥ 109 °C
              Melting range (upper value)≤ 112 °C
              Identity (IR)passes test