7145-99-5

• 常用中文名：5-甲基苯并[d][1,3]二氧杂环戊烷
• 常用英文名：3,4-Methylenedioxytoluene
• CAS号：7145-99-5
• 分子式：C₈H₈O₂
• 分子量：136.148
• 发布时间：2018-09-20 14:35:43
• 更新时间：2024-01-02 15:37:03

名称

• 中文名: 3,4-(亚甲二氧基)甲苯
• 英文名: 5-methyl-1,3-benzodioxole
• 中文别名: 5-甲基-1,3-苯并间二氧杂环戊二烯; 5-甲基-1,3-苯并二噁茂; 3,4-(亚甲二氧)甲苯
• 英文别名: Toluene,3,4-methylenedioxy; 1,3-Benzodioxole, 5-methyl-; 3,4-Methylenedioxytoluene; 4-methyl-methylenedioxybenzene; 1,3-Benzodioxole,5-methyl; MFCD00005833; 1-methyl-3,4-methylenedioxybenzene; EINECS 230-453-1; 5-METHYL-1,3-BENZODIOXOLE

物化性质

• 密度: 1.2±0.1 g/cm3
• 沸点: 200.4±30.0 °C at 760 mmHg
• 分子式: C₈H₈O₂
• 分子量: 136.148
• 闪点: 76.1±0.0 °C
• 精确质量: 136.052429
• PSA: 18.46000
• LogP: 2.54
• 外观性状: 无色至黄色液体
• 蒸汽压: 0.5±0.4 mmHg at 25°C
• 折射率: 1.550
• 储存条件:

  密封于阴凉干燥处。

• 稳定性:

  遵照规格使用和储存则不会分解。

• 分子结构:

  1、 摩尔折射率：37.23

  2、 摩尔体积（m³/mol：116.8

  3、 等张比容（90.2K）：300.2

  4、 表面张力（dyne/cm）：43.5

  5、 极化率（10^-24cm³）：14.76

• 计算化学:

  1.疏水参数计算参考值（XlogP）:无

  2.氢键供体数量:0

  3.氢键受体数量:2

  4.可旋转化学键数量:0

  5.互变异构体数量:无

  6.拓扑分子极性表面积18.5

  7.重原子数量:10

  8.表面电荷:0

  9.复杂度:124

  10.同位素原子数量:0

  11.确定原子立构中心数量:0

  12.不确定原子立构中心数量:0

  13.确定化学键立构中心数量:0

  14.不确定化学键立构中心数量:0

  15.共价键单元数量:1

• 更多:

  1. 性状：浅黄色液体

  2. 密度（g/mL,25/4℃）： 1.135

  3. 相对蒸汽密度（g/mL,空气=1）：无可用

  4. 熔点（ºC）：无可用

  5. 沸点（ºC,常压）：199-200

  6. 沸点（ºC,5.2kPa）： 无可用

  7. 折射率： 1.532

  8. 闪点（ºC）： 无可用

  9. 比旋光度（º）：无可用

  10. 自燃点或引燃温度（ºC）：76

  11. 蒸气压（kPa,25ºC）：无可用

  12. 饱和蒸气压（kPa,60ºC）：无可用

  13. 燃烧热（KJ/mol）：无可用

  14. 临界温度（ºC）：无可用

  15. 临界压力（KPa）：无可用

  16. 油水（辛醇/水）分配系数的对数值：无可用

  17. 爆炸上限（%,V/V）：无可用

  18. 爆炸下限（%,V/V）： 无可用

  19. 溶解性：无可用

MSDS

SECTION 1: Identification of the substance/mixture and of the company/undertaking Product identifiers Product name: 3,4-(Methylenedioxy)toluene REACH No.: A registration number is not available for this substance as the substance or its uses are exempted from registration, the annual tonnage does not require a registration or the registration is envisaged for a later registration deadline. CAS-No.: 7145-99-5 SECTION 2: Hazards identification Classification of the substance or mixture Classification according to Regulation (EC) No 1272/2008 Acute toxicity, Oral (Category 4), H302 Serious eye damage (Category 1), H318 For the full text of the H-Statements mentioned in this Section, see Section 16. Classification according to EU Directives 67/548/EEC or 1999/45/EC Xn HarmfulR22, R41 For the full text of the R-phrases mentioned in this Section, see Section 16. Label elements Labelling according Regulation (EC) No 1272/2008 Pictogram Signal wordDanger Hazard statement(s) Harmful if swallowed. Causes serious eye damage. Precautionary statement(s) Wear protective gloves/ eye protection/ face protection. P305 + P351 + P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Supplemental Hazardnone Statements Other hazards - none SECTION 3: Composition/information on ingredients Substances Synonyms: 5-Methyl-1,3-benzodioxole Formula: C8H8O2 Molecular Weight: 136,15 g/mol CAS-No.: 7145-99-5 EC-No.: 230-453-1 Hazardous ingredients according to Regulation (EC) No 1272/2008 ComponentClassificationConcentration 5-Methyl-1,3-benzodioxole CAS-No.7145-99-5Acute Tox. 4; Eye Dam. 1;<= 100 % EC-No.230-453-1H302, H318 Hazardous ingredients according to Directive 1999/45/EC ComponentClassificationConcentration 5-Methyl-1,3-benzodioxole CAS-No.7145-99-5Xn, R22 - R41<= 100 % EC-No.230-453-1 For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16 SECTION 4: 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 Wash off with soap and plenty of water. 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 The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11 Indication of any immediate medical attention and special treatment needed no data available SECTION 5: Firefighting measures Extinguishing media Suitable extinguishing media For small (incipient) fires, use media such as "alcohol" foam, dry chemical, or carbon dioxide. For large fires, apply water from as far as possible. Use very large quantities (flooding) of water applied as a mist or spray; solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. 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 Use water spray to cool unopened containers. SECTION 6: Accidental release measures Personal precautions, protective equipment and emergency procedures Use personal protective equipment. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Remove all sources of ignition. Evacuate personnel to safe areas. Beware of vapours accumulating to form explosive concentrations. Vapours can accumulate in low areas. For personal protection see section 8. 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 Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and place in container for disposal according to local regulations (see section 13). Keep in suitable, closed containers for disposal. Reference to other sections For disposal see section 13. SECTION 7: Handling and storage Precautions for safe handling Avoid contact with skin and eyes. Avoid inhalation of vapour or mist. Keep away from sources of ignition - No smoking.Take measures to prevent the build up of electrostatic charge. For precautions see section 2.2. 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) A part from the uses mentioned in section 1.2 no other specific uses are stipulated SECTION 8: Exposure controls/personal protection Control parameters Components with workplace control parameters Exposure controls Appropriate engineering controls Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. 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). Control of environmental exposure Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. SECTION 9: Physical and chemical properties Information on basic physical and chemical properties a) AppearanceForm: liquid Colour: light yellow b) Odourno data available c) Odour Thresholdno data available d) pHno data available e) Melting point/freezingno data available point f) Initial boiling point and 199 - 200 °C - lit. boiling range g) Flash point76 °C - closed cup h) Evapouration 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 density1,135 g/cm3 at 25 °C n) Water solubilityno data available o) Partition coefficient: n- log Pow: 2,46 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 SECTION 10: Stability and reactivity Reactivity no data available Chemical stability Stable under recommended storage conditions. Possibility of hazardous reactions no data available Conditions to avoid Heat, flames and sparks. Incompatible materials Strong oxidizing agents Hazardous decomposition products Other decomposition products - no data available In the event of fire: see section 5 SECTION 11: 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 sensitisation no data available 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 Additional Information RTECS: DF4921090 To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated. SECTION 12: 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 PBT/vPvB assessment not available as chemical safety assessment not required/not conducted Other adverse effects Harmful to aquatic life. SECTION 13: Disposal considerations Waste treatment methods Product This combustible material may be burned in a chemical incinerator equipped with an afterburner and scrubber. 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. SECTION 14: Transport information UN number ADR/RID: -IMDG: -IATA: - UN proper shipping name ADR/RID: Not dangerous goods IMDG: Not dangerous goods IATA:Not dangerous goods Transport hazard class(es) ADR/RID: -IMDG: -IATA: - Packaging group ADR/RID: -IMDG: -IATA: - Environmental hazards ADR/RID: noIMDG Marine pollutant: noIATA: no Special precautions for user no data available SECTION 15: Regulatory information This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006. Safety, health and environmental regulations/legislation specific for the substance or mixture no data available Chemical Safety Assessment For this product a chemical safety assessment was not carried out SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

毒理学数据: 试验方法：腹腔 摄入剂量： “ 500毫克/千克 测试对象：啮齿动物-鼠 毒性类型：急性 毒性作用： 详细的毒副作用没有报告以外的其他致死剂量值 生态学数据: 该物质对环境可能有危害，对水体应给予特别注意。 CHEMICAL IDENTIFICATION RTECS NUMBER : DF4921090 CHEMICAL NAME : 1,3-Benzodioxole, 5-methyl- CAS REGISTRY NUMBER : 7145-99-5 LAST UPDATED : 199706 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C8-H8-O2 MOLECULAR WEIGHT : 136.16 HEALTH HAZARD DATA ACUTE TOXICITY DATA TYPE OF TEST : LD - Lethal dose ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : >500 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : CBCCT* "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. (National Academy of Science Library, 2101 Constitution Ave., NW, Washington, DC 20418) Volume(issue)/page/year: 6,230,1954

安全

• 符号: GHS05, GHS07
• 信号词: Danger
• 危害声明: H302-H318
• 警示性声明: P280-P305 + P351 + P338
• 个人防护装备: Eyeshields;Gloves;half-mask respirator (US);multi-purpose combination respirator cartridge (US)
• 危害码 (欧洲): Xn: Harmful;
• 风险声明 (欧洲): R20/21/22;R36/37/38
• 安全声明 (欧洲): S23-S24/25
• 危险品运输编码: NONH for all modes of transport
• WGK德国: 3
• RTECS号: DF4921090

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