Food Chem., 47, 1999, 5146-5150. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 200 C; Start time: 2 min; CAS no: 74931; Active phase: DB-Wax; Carrier gas: He; Data type: Normal alkane RI; Authors: Umano, K.; Hagi, Y.; Nakahara, K.; Shyoji, A.; Shibamoto, T., Volatile chemicals formed in the headspace of a heated D-glucose/L-cysteine Maillard model system, J. Agric.
(Warsaw), 26, 1981, 109-113. umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 50 ft; Column type: Packed; Start T: 27 C; CAS no: 74931; Active phase: Squalane; Carrier gas: He; Substrate: Chromosorb P; Data type: Kovats RI; Authors: Hively, R.A.; Hinton, R.E., Variation of the retention index with temperature on squalane substrates, J. Shipped as a liquefied compressed gas. The EC Inventory is a combination of three independent European lists of substances from the previous EU chemicals regulatory frameworks (EINECS, ELINCS and the NLP-list). A thiol generally has a much lower boiling point than the hydroxyl compound of like structure; for example, methanethiol boils at 6° C (43° F), methanol at 65° C (149° F). Harmonisation is based on the substance’s physical, toxicological and eco-toxicological hazard assessment. , Quick drench (liquid), Frostbite wash, NIOSH REL : C 0.5 ppm (1 mg/m 3 ) [15-minute] OSHA PEL ? (Rus. (Warsaw), 26, 1981, 109-113. umn class: Semi-standard non-polar; Column length: 2 m; Column type: Packed; Start T: 80 C; CAS no: 74931; Active phase: Squalane; Substrate: Chromosorb W DMCS; Data type: Kovats RI; Authors: Zygmunt, B.; Staszewski, R., Retention index and gas chromatographic-mass spectrometric identification of thiols in liquified gas, Chem. ; Cantwell, M.I. ECHA organises consultations to get feedback from all interested parties and to gather the widest possible range of scientific information for the regulatory processes. What is the Classification and Labelling Inventory? ; Chupalov, A.A., New Possibilities of Chromato Mass Pectrometric Identification of Organic Compounds Using Increments of Gas Chromatographic Retention Indices of Molecular Structural Fragments, Zh. The date of the last update corresponds to the publication date of the InfoCard and not necessarily to the date in which the update occurred in the source data.
), 32(5), 1996, 656-666, In original 656-666. ass: Standard non-polar; Column diameter: 0.20 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 30 C; End T: 150 C; CAS no: 74931; Active phase: PONA; Phase thickness: 0.50 um; Data type: Normal alkane RI; Authors: Yang, Y.-T.; Wang, Z.; Han. ; Ustinov, E.P., Gas chromatographic analysis of volatile substances evolved into atmosphere from polymer materials, Zh. The lower aliphatic thiols are useful as warning odorants in fuel gases and are somewhat toxic. When solutizers, such as potassium isobutyrate and sodium cresylate, are added to caustic soda, the solubility of the…. Thiol, also called mercaptan, any of a class of organic chemical compounds similar to the alcohols and phenols but containing a sulfur atom in place of the oxygen atom. Information on applicable regulatory frameworks is also automatically generated and may not be complete or up to date. The EC or list number is the primary substance identifier used by ECHA. ents, alkali and alkaline earth metals, epoxides, hydrazines, ketones, lead, mercury (II) oxide, azo- anddiazo- compounds, copper, copper alloys, nitrides, organic peroxides,and a variety of other che Registration, Evaluation, Authorisation and Restriction of Chemicals, Chemical Agents Directive and Carcinogens or Mutagens Directive, EC Inventory, Pre-Registration process, Other, EC Inventory, C&L Inventory, Pre-Registration process, Other, Substances of very high concern identification, Recommendation for the Authorisation List, Getting started with EU chemicals legislation, Classification of substances and mixtures, Harmonised classification and labelling (CLH). The CLP Regulation uses the UN Global Harmonised System (GHS) and European Union Specific Hazard Statements (EUH). The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. This information is only displayed if the substance is well–defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure. ; Ling, L.C., Broccoli storage under low-oxygen atmosphere: Identification of higher boiling volatiles, J. Agric. Food Chem., 50, 2002, 6459-6467. class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 5C(8min) =>3C/min =>20C =>10C/min =>150C(10min); CAS no: 74931; Active phase: HP-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Bonaiti, C.; Irlinger, F.; Spinnler, H.E. 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Agric. I think it's similar to the Lewis structure for PCl5. The ‘Hazard classification and labelling’ section shows the hazards of a substance based on the standardised system of statements and pictograms established under the CLP (Classification Labelling and Packaging) Regulation. This article was most recently revised and updated by. BPR regulation aims to improve the functioning of the biocidal products market in the EU, while ensuring a high level of protection for humans and the environment. It is an organosulfur compound with the formula CH3CH2SH. Ethanethiol, commonly known as ethyl mercaptan and stench, is a clear liquid with a distinct odor.
Chem. Let us know if you have suggestions to improve this article (requires login). The molecular structure is based on structures generated from information available in ECHA’s databases. Occupational exposure limit (OEL) values are derived within two legal frameworks that form an integral part of the EU’s mechanism for protecting the health of workers. Food Chem., 40(5), 1992, 850-852. ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 200 C; Start time: 5 min; CAS no: 74931; Active phase: SPB-5; Carrier gas: He; Phase thickness: 1.0 um; Data type: Normal alkane RI; Authors: Pinho, O.; Peres, C.; Ferreira, I.M.P.L.V.O., Solid-phase microextraction of volatile compounds in "Terrincho" ewe cheese. Aliphatic thiols are commonly prepared from alkyl halides and sodium hydrosulfide or from olefins and hydrogen sulfide.
(Rus. Thiols are among the odorous principles in the scent of skunks and of freshly chopped onions; their presence in petroleum and natural gas is objectionable because they have disagreeable odours, interfere with catalysts used in refining processes, and produce sulfur dioxide upon combustion. A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. tert-Butylthiol, also known as 2-methylpropane-2-thiol, 2-methyl-2-propanethiol, tert-butyl mercaptan (TBM), and t-BuSH, is an organosulfur compound with the formula (CH3)3CSH. The quality and correctness of the information submitted to ECHA remains the responsibility of the data submitter. Other relevant information includes the following: To see the full list of notified classifications and to get more information on impurities and additives relevant to classification please consult the C&L Inventory. Announcing our NEW encyclopedia for Kids! J.-H.; Tian, H.-P.; Yang, H.-Y., Determination of sulfur compounds in gasoline fraction of microreactor products by gas chromatography - Atomic emission detector, Petrochemical Technology (Shiyou Huagong), 32(11), 2003, 995-998. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 30 C; End T: 200 C; End time: 20 min; Start time: 25 min; CAS no: 74931; Active phase: DB-1; Data type: Normal alkane RI; Authors: Hansen, M.; Buttery, R.G.  InfoCards are updated when new information is available. If a substance is classified under multiple CLH entries, a link to the C&L Inventory is provided to allow users to view CLH information associated with the substance and no text is automatically generated for the InfoCard. Dairy Sci., 88, 2005, 1671-1684. class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 40C(2min) =>40C/min =>60C(2min) =>5C/min =>240C; CAS no: 74931; Active phase: Supelcowax-10; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Majcher, M.A.
Anal. The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. umn class: Standard non-polar; Column length: 3 m; Column type: Packed; Start T: 42 C; CAS no: 74931; Active phase: SE-30; Data type: Kovats RI; Authors: Rudenko, G.I. Substances may have impurities and additives that lead to different classifications. Its structure parallels that of ethanol, but with sulfur in place of oxygen. If available, additional information on classification and labelling (C&L) is derived from REACH registration dossiers submitted by industry. The Prior Informed Consent Regulation administers the import and export of certain hazardous chemicals and places obligations on companies who wish to export these chemicals to non-EU countries. ; Jelen, H.H., Effect of Cysteine and Cystine Addition on Sensory Profile and Potent Odorants of Extruded Potato Snacks, J. Agric. InfoCards are generated automatically based on the data available at the time of generation. J.-H.; Tian, H.-P.; Yang, H.-Y., Determination of sulfur compounds in gasoline fraction of microreactor products by gas chromatography - Atomic emission detector, Petrochemical Technology (Shiyou Huagong), 32(11), 2003, 995-998. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; CAS no: 74931; Active phase: DB-1; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kawai, T.; Ishida, Y.; Kakiuchi, H.; Ikeda, N.; Higashida, T.; Nakamura, S., Flavor components of dried squid, J. Agric.
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