25508-20-7

• 常用中文名：1,3-二(苄氧羰基)-2-甲基异硫脲
• 常用英文名：1,3-Bis(benzyloxycarbonyl)-2-Methyl-2-thiopseudourea
• CAS号：25508-20-7
• 分子式：C₁₈H₁₈N₂O₄S
• 分子量：358.411
• 相关类别： 化学试剂 有机试剂 硫脲
• 发布时间：2019-01-31 23:51:05
• 更新时间：2024-01-10 21:47:22
• 下载msds

名称

• 中文名: 1,3-二(苄氧基羰基)-2-甲基异硫代脲
• 英文名: 1,3-Bis(benzyloxycarbonyl)-2-methylisothiourea
• 中文别名: 1,3-双(苄氧基羰基)-2-甲基-2-硫代异脲
• 英文别名: N,N'-dicarbobenzyloxy-S-methylisothiourea; N,N'-di-Cbz-S-methylisothiourea; SMe(C=NCbz)NHCbz; N,N'-dibenzyloxycarbonyl-S-methylisothiourea; 1,3-BIS(BENZYLOXYCARBONYL)-2-METHYL-2-THIOPSEUDOUREA; Z2-S-methylisothiourea; 1,3-bis(benzoxycarbonyl)-2-methyl-2-thiopseudo urea; 1,3-BIS(BENZYLOXYCARBONYL)-2-METHYL-ISOTHIOUREA; MeSC(=NCBz)NHCbz; MFCD00674040; 2-Methyl-1,3-di-Z-isothiourea; Carbamic acid, N,N'-[(E)-(methylthio)methylidyne]bis-, bis(phenylmethyl) ester; Dibenzyl [(E)-(methylsulfanyl)methylylidene]biscarbamate; Dibenzyl [(Z)-(methylthio)methylylidene]biscarbamate

物化性质

• 密度: 1.2±0.1 g/cm3
• 熔点: 60-63ºC(lit.)
• 分子式: C₁₈H₁₈N₂O₄S
• 分子量: 358.411
• 精确质量: 358.098724
• PSA: 102.29000
• LogP: 4.58
• 折射率: 1.581
• 储存条件:

  密封于阴凉干燥环境中

• 稳定性:

  遵照规定使用和储存则不会分解。

• 分子结构:

  1、摩尔折射率：无可用

  2、 摩尔体积（cm³/mol）：无可用

  3、 等张比容（90.2K）：无可用

  4、 表面张力（dyne/cm）：无可用

  5、 极化率：无可用

• 更多:

  1. 性状：白色晶体

  2. 密度（g/mL,25/4℃）：无可用

  3. 相对蒸汽密度（g/mL,空气=1）：无可用

  4. 熔点（ºC）：60-63

  5. 沸点（ºC,常压）：无可用

  6. 沸点（ºC,5.2kPa）：无可用

  7. 折射率：无可用

  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）：无可用

  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: 1,3-Bis(benzyloxycarbonyl)-2-methyl-2- thiopseudourea 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.: 25508-20-7 Relevant identified uses of the substance or mixture and uses advised against Identified uses: Laboratory chemicals, Manufacture of substances SECTION 2: Hazards identification Classification of the substance or mixture Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008. This substance is not classified as dangerous according to Directive 67/548/EEC. Label elements This substance is not classified as dangerous according to Directive 67/548/EEC. Other hazards - none SECTION 3: Composition/information on ingredients Substances Synonyms: 1,3-Bis(benzyloxycarbonyl)-2-methylisothiourea 2-Methyl-1,3-di-Z-isothiourea Formula: C18H18N2O4S Molecular Weight: 358,41 g/mol CAS-No.: 25508-20-7 No components need to be disclosed according to the applicable regulations. SECTION 4: First aid measures Description of first aid measures If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. In case of skin contact Wash off with soap and plenty of water. In case of eye contact Flush eyes with water as a precaution. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. 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 Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Special hazards arising from the substance or mixture Carbon oxides, nitrogen oxides (NOx), Sulphur oxides Advice for firefighters Wear self contained breathing apparatus for fire fighting if necessary. Further information no data available SECTION 6: Accidental release measures Personal precautions, protective equipment and emergency procedures Avoid dust formation. Avoid breathing vapours, mist or gas. For personal protection see section 8. Environmental precautions Do not let product enter drains. Methods and materials for containment and cleaning up Sweep up and shovel. 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 Provide appropriate exhaust ventilation at places where dust is formed. 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. 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 General industrial hygiene practice. Personal protective equipment Eye/face protection 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 Choose body protection in relation to its type, to the concentration and amount of dangerous substances, and to the specific work-place., The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Respiratory protection Respiratory protection is not required. Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Control of environmental exposure Do not let product enter drains. SECTION 9: Physical and chemical properties Information on basic physical and chemical properties a) AppearanceForm: crystalline Colour: white b) Odourunpleasant c) Odour Thresholdno data available d) pHno data available e) Melting point/freezingMelting point/range: 60 - 63 °C - lit. point f) Initial boiling point and no data available boiling range g) Flash pointno data available 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 densityno data available n) Water solubilityno data available o) Partition coefficient: n- no data available 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 no data available 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: Not available 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 no data available SECTION 13: Disposal considerations Waste treatment methods Product Offer surplus and non-recyclable solutions to a licensed disposal company. 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: Other information Further information Copyright 2013 Co. LLC. License granted to make unlimited paper copies for internal use only. The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. Corporation and its Affiliates shall not be held liable for any damage resulting from handling or from contact with the above product. See and/or the reverse side of invoice or packing slip for additional terms and conditions of sale.

毒性和生态

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。

安全

• 个人防护装备: Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
• 安全声明 (欧洲): S22;S24/25
• 危险品运输编码: NONH for all modes of transport
• WGK德国: 3

合成路线

867-44-7 501-53-1 ~98% 25508-20-7

文献：Lal, Bansi; Gangopadhyay Tetrahedron Letters, 1996 , vol. 37, # 14 p. 2483 - 2486

14527-26-5 31139-36-3 ~85% 25508-20-7

文献：Gers, Tomasz; Kunce, Danuta; Markowski, Pawel; Izdebski, Jan Synthesis, 2004 , # 1 p. 37 - 42

13139-17-8 14527-26-5 ~81% 25508-20-7

文献：Gers, Tomasz; Kunce, Danuta; Markowski, Pawel; Izdebski, Jan Synthesis, 2004 , # 1 p. 37 - 42

上下游产品

上游产品  5
867-44-7 501-53-1 14527-26-5 31139-36-3
13139-17-8
下游产品  3
10065-79-9 15230-93-0 621-84-1