SECTION 1: Identification of the substance/mixture and of the company/undertaking Product identifiers Product name : 4H-THIOPYRAN-4-THIONE 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. : 1120-94-1 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 Formula : C5H4S2 Molecular Weight : 128,22 g/mol CAS-No. : 1120-94-1 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, 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) Apart 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) Appearance Form: solid b) Odour no data available c) Odour Threshold no data available d) pH no data available e) Melting point/freezing no data available point f) Initial boiling point and no data available boiling range g) Flash point no data available h) Evapouration rate no data available i) Flammability (solid, gas) no data available j) Upper/lower no data available flammability or explosive limits k) Vapour pressure no data available l) Vapour density no data available m) Relative density no data available n) Water solubility no data available o) Partition coefficient: n- no data available octanol/water p) Auto-ignition no data available temperature q) Decomposition no data available temperature r) Viscosity no data available s) Explosive properties no data available t) Oxidizing properties no 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: no IMDG Marine pollutant: no IATA: 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
Synthesis and anti-MRSA Activity of Novel Cephalosporin Derivatives
作者:Stan V. D'Andrea、Daniel Bonner、Joanne J. Bronson、Junius Clark、Ken Denbleyker、Joan Fung-Tomc、Shelley E. Hoeft、Thomas W. Hudyma、John D. Matiskella、Raymond F. Miller、Peter F. Misco、Michael Pucci、Roman Sterzycki、Yuan Tsai、Yasutsuga Ueda、John A. Wichtowski、Janak Singh、Thomas P. Kissick、Jeffery T. North、Annie Pullockaran、Michael Humora、Brenda Boyhan、Truc Vu、Alan Fritz、J. Heikes、Rita Fox、Jollie D. Godfrey、Robert Perrone、Murray Kaplan、David Kronenthal、Richard H. Mueller
DOI:10.1016/s0040-4020(00)00418-x
日期:2000.7
Cephalosporin derivatives containing a unique combination of lipophilic C-7 sidechains and polar C-3 thiopyridinium groups were synthesized and found to exhibit potent anti-MRSA activity in vitro and in vivo. The optimum C-7 sidechains utilized were 2,5-dichlorophenylthioacetamido and 2,6-dichloropyrid-4-ylthioacetamido. The C-3 thiopyridinium rings were substituted at nitrogen with amino acid and
A novel heterocyclic atom exchange reaction with Lawesson's reagent: a one-pot synthesis of dithiomaltol
作者:Daniel Brayton、Faith E. Jacobsen、Seth M. Cohen、Patrick J. Farmer
DOI:10.1039/b511966a
日期:——
A one-pot reaction of maltol with Lawesson's reagent generates dithiomaltol, a thiopyran-4-thione, via an unusual heterocyclic atom exchange (HCAE) reaction; only pyrones with proton or aliphatic substituents undergo the HCAE substitution.
An esr investigation on group IVb organometalloxy- and organometalthio-pyryl and thiapyryl radicals
作者:Angelo Alberti、Francesco Paolo Colonna、Gian Franco Pedulli
DOI:10.1016/0040-4020(80)88030-6
日期:1980.1
triphenylgermyl and triphenylstannyl radicals with γ-pyrone, γ-thiopyrone, thia-γ-pyrone and thia-γ-thiopyrone have been studied by ESR spectroscopy. The spectral parameters indicate that these radicals adopt the conformation where the O-M or S-M bonds are eclipsed with the 2 pz orbital of the γ-carbon, despite the absence of hindering substituent groups in proximity of the radical centre.
通过ESR光谱研究了三苯基甲硅烷基,三苯基锗基和三苯基锡烷基与γ-吡喃酮,γ-硫代吡喃酮,硫代-γ-吡喃酮和硫代-γ-硫代吡喃酮的自旋加合物。光谱参数表明,尽管自由基中心附近不存在阻碍取代基的基团,但这些自由基采用的构型是OM或SM键被γ-碳的2 p z轨道所遮盖。
Arndt, Istanbul Universitesi Fen Fakultesi Mecmuasi, 1948, vol. <A> 13, p. 57,63
作者:Arndt
DOI:——
日期:——
Flammang, Robert; Barbieux-Flammang, Monique; Gerbaux, Pascal, Journal of the Chemical Society. Perkin transactions II, 1997, # 7, p. 1261 - 1264
作者:Flammang, Robert、Barbieux-Flammang, Monique、Gerbaux, Pascal、Pedersen, Carl Th.