trans-2,4-Pentadienoicacid structure
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Common Name | trans-2,4-Pentadienoicacid | ||
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CAS Number | 21651-12-7 | Molecular Weight | 98.09990 | |
Density | 1.039 | Boiling Point | 215ºC | |
Molecular Formula | C5H6O2 | Melting Point | 72ºC | |
MSDS | Chinese | Flash Point | 121ºC |
Name | (2E)-2,4-Pentadienoic Acid |
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Synonym | More Synonyms |
Density | 1.039 |
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Boiling Point | 215ºC |
Melting Point | 72ºC |
Molecular Formula | C5H6O2 |
Molecular Weight | 98.09990 |
Flash Point | 121ºC |
Exact Mass | 98.03680 |
PSA | 37.30000 |
LogP | 0.81320 |
Section1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE Product identifiers Product name: trans-2,4-Pentadienoic acid CAS-No.: 21651-12-7 Relevant identified uses of the substance or mixture and uses advised against Identified uses: Laboratory chemicals, Manufacture of substances Section2. HAZARDS IDENTIFICATION Classification of the substance or mixture Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP] Acute toxicity, Oral (Category 3) Skin corrosion (Category 1B) Skin sensitization (Category 1) Classification according to EU Directives 67/548/EEC or 1999/45/EC Toxic if swallowed. Causes burns. May cause sensitization by skin contact. Label elements Labelling according Regulation (EC) No 1272/2008 [CLP] Pictogram Signal wordDanger Hazard statement(s) H301Toxic if swallowed. H314Causes severe skin burns and eye damage. H317May cause an allergic skin reaction. Precautionary statement(s) P280Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/ physician. P305 + P351 + P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310Immediately call a POISON CENTER or doctor/ physician. Supplemental Hazardnone Statements According to European Directive 67/548/EEC as amended. Hazard symbol(s) R-phrase(s) R25Toxic if swallowed. R34Causes burns. R43May cause sensitization by skin contact. S-phrase(s) S26In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39Wear suitable protective clothing, gloves and eye/face protection. S45In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). Other hazards - none Section3. COMPOSITION/INFORMATION ON INGREDIENTS Substances Formula: C5H6O2 Molecular Weight: 98,1 g/mol ComponentConcentration trans-2,4-Pentadienoic acid CAS-No.21651-12-7- Section4. FIRST AID MEASURES Description of first aid measures General advice Consult a physician. Show this safety data sheet to the doctor in attendance. If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Take off contaminated clothing and shoes immediately. Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. Most important symptoms and effects, both acute and delayed Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin., spasm, inflammation and edema of the larynx, spasm, inflammation and edema of the bronchi, pneumonitis, pulmonary edema, burning sensation, Cough, wheezing, laryngitis, Shortness of breath, Headache, Nausea Indication of any immediate medical attention and special treatment needed no data available Section5. FIREFIGHTING MEASURES Extinguishing media Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Special hazards arising from the substance or mixture Carbon oxides Advice for firefighters Wear self contained breathing apparatus for fire fighting if necessary. Further information no data available Section6. ACCIDENTAL RELEASE MEASURES Personal precautions, protective equipment and emergency procedures Wear respiratory protection. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Environmental precautions Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Methods and materials for containment and cleaning up Soak up with inert absorbent material and dispose of as hazardous waste. Keep in suitable, closed containers for disposal. Reference to other sections For disposal see section 13. Section7. HANDLING AND STORAGE Precautions for safe handling Avoid contact with skin and eyes. Avoid inhalation of vapour or mist. Normal measures for preventive fire protection. Conditions for safe storage, including any incompatibilities Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Specific end use(s) no data available Section8. EXPOSURE CONTROLS/PERSONAL PROTECTION Control parameters Components with workplace control parameters Exposure controls Appropriate engineering controls Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling the product. Personal protective equipment Eye/face protection Tightly fitting safety goggles. Faceshield (8-inch minimum). Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Body Protection Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Respiratory protection Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Section9. PHYSICAL AND CHEMICAL PROPERTIES Information on basic physical and chemical properties a) AppearanceForm: liquid b) Odourno data available c) Odour Thresholdno data available d) pHno data available e) Melting point/freezingMelting point/range: 71 - 76 °C point f) Initial boiling point and no data available boiling range g) Flash pointno data available h) Evaporation rateno data available i) Flammability (solid, gas) no data available j) Upper/lowerno data available flammability or explosive limits k) Vapour pressureno data available l) Vapour densityno data available m) Relative densityno data available n) Water solubilityno data available o) Partition coefficient: n- log Pow: 1,207 octanol/water p) Auto-ignitionno data available temperature q) Decompositionno data available temperature r) Viscosityno data available s) Explosive propertiesno data available t) Oxidizing propertiesno data available Other safety information no data available Section10. STABILITY AND REACTIVITY Reactivity no data available Chemical stability no data available Possibility of hazardous reactions no data available Conditions to avoid no data available Incompatible materials Strong oxidizing agents Hazardous decomposition products Other decomposition products - no data available Section11. TOXICOLOGICAL INFORMATION Information on toxicological effects Acute toxicity no data available Skin corrosion/irritation no data available Serious eye damage/eye irritation no data available Respiratory or skin sensitization May cause allergic skin reaction. Germ cell mutagenicity no data available Carcinogenicity IARC:No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC. Reproductive toxicity no data available Specific target organ toxicity - single exposure no data available Specific target organ toxicity - repeated exposure no data available Aspiration hazard no data available Potential health effects Inhalation May be harmful if inhaled. Material is extremely destructive to the tissue of the mucous membranes and upper respiratory tract. IngestionToxic if swallowed. Causes burns. SkinMay be harmful if absorbed through skin. Causes skin burns. Eyes Causes eye burns. Signs and Symptoms of Exposure Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin., spasm, inflammation and edema of the larynx, spasm, inflammation and edema of the bronchi, pneumonitis, pulmonary edema, burning sensation, Cough, wheezing, laryngitis, Shortness of breath, Headache, Nausea Additional Information RTECS: Not available Section12. ECOLOGICAL INFORMATION Toxicity no data available Persistence and degradability no data available Bioaccumulative potential no data available Mobility in soil no data available Results of PBT and vPvB assessment no data available Other adverse effects Toxic to aquatic life. no data available Section13. DISPOSAL CONSIDERATIONS Waste treatment methods Product Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional waste disposal service to dispose of this material. Contaminated packaging Dispose of as unused product. Section14. TRANSPORT INFORMATION UN number ADR/RID: 3261IMDG: 3261IATA: 3261 UN proper shipping name ADR/RID: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S. (trans-2,4-Pentadienoic acid) IMDG: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S. (trans-2,4-Pentadienoic acid) IATA:Corrosive solid, acidic, organic, n.o.s. (trans-2,4-Pentadienoic acid) Transport hazard class(es) ADR/RID: 8IMDG: 8IATA: 8 Packaging group ADR/RID: IIIMDG: IIIATA: II Environmental hazards ADR/RID: noIMDG Marine Pollutant: noIATA: no Special precautions for user no data available SECTION 15 - REGULATORY INFORMATION N/A SECTION 16 - ADDITIONAL INFORMATION N/A |
Hazard Codes | C |
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RIDADR | UN 1759 |
Packaging Group | III |
Hazard Class | 8 |
HS Code | 2916190090 |
Precursor 7 | |
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DownStream 10 | |
HS Code | 2916190090 |
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Summary | 2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0% |
(2E)-Penta-2,4-dienoic acid |
Penta-2,3-diensaeure |
penta-2,4-dienoic acid |
2,3-Pentadienoic acid |
pentadienoic acid |
1-carboxy butadiene |