In vivo and in vitro metabolism of the plasticizer DEHA was examined in the rat to determine the different steps involved in the hepatic concn of peroxisomal proliferators. In the in vivo studies, different doses of DEHA and mono-(2-ethylhexyl)-adipate were administered by gavage to Wistar rats for 5 days. In the in vitro studies, hepatocytes were isolated by in situ perfusion. No DEHA was recovered in rat urine 24 hr after administration; adipic acid was the main metabolite. Only the 2-ethylhexanol pathway showed further metabolites, mainly 2-ethylhexanoic acid which was either conjugated or submitted to other pathways. While 2-ethylhexanoic acid glucuronidation appeared to be dose and time dependent, 2-ethylhexanol glucuronidation was more stable. In vitro, the first hydrolysis of DEHA appeared to be a rate limiting step. When mono-(2-ethylhexyl) adipate was added directly to the culture medium, all the metabolites identified in the in vivo study were found. Glucuronidation of both 2-ethylhexanol and 2-ethylhexanoic acid was dose and time dependent.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
致癌性证据
没有关于人类的数据。动物致癌性证据有限。总体评估:第3组:该物质对人类致癌性无法分类。
No data are available in humans. Limited evidence of carcinogenicity in animals. OVERALL EVALUATION: Group 3: The agent is not classifiable as to its carcinogenicity to humans.
CLASSIFICATION: C; possible human carcinogen. BASIS FOR CLASSIFICATION: Based on an absence of human data and increased incidence of liver tumors in female mice. Except for a positive dominant lethal assay, there was no evidence of genotoxicity; this compound does, however, exhibit structural relationships to other nongenotoxic compounds classified as probable and possible human carcinogens. HUMAN CARCINOGENICITY DATA: None. ANIMAL CARCINOGENICITY DATA: Limited.
IARC Monographs:Volume Sup 7: Overall Evaluations of Carcinogenicity: An Updating of IARC Monographs Volumes 1 to 42, 1987; 440 pages; ISBN 92-832-1411-0 (out of print)
来源:International Agency for Research on Cancer (IARC)
The absorption, distribution, and elimination of DEHA were studied in mice and rats. Male Sprague Dawley rats, male NMRI mice, and pregnant female NMRI mice on day 17 of gestation were administered (14)C labeled DEHA dissolved in dimethyl sulfoxide or corn oil iv or intragastrically. The DEHA was labeled on the carbonyl or alcohol moiety. Animals were killed 5 min to 4 days after dosing, and the tissue distribution of (14)C activity was determined by whole body autoradiography. The tissue distribution of (14)C activity from carbonyl labeled DEHA was similar in all animals. Highest levels of radioactivity were observed in the body fat, liver, and kidney after intragastrically or iv administration. (14)C activity from alcohol labeled DEHA was found in the bronchi of male mice. In pregnant mice, (14)C activity was observed in the fetal liver, intestine, and bone marrow during the first 24 hr after carbonyl labeled DEHA was given. Very little radiolabel was found in fetuses of mice given alcohol labeled DEHA. No DEHA derived radioactivity was found in mice 4 days after dosing. Blood DEHA concn in rats increased faster and were two or three times higher when the dose was given in DMSO rather than corn oil. Significant amounts of DEHA were excreted in the bile of rats treated with DEHA in DMSO. Very little biliary elimination of radiolabel occurred in animals given carbonyl labeled DEHA. DEHA was excreted in the urine, the amounts being smaller in animals used in the bile collection experiments. The vehicle had very little effect on the amount excreted. DEHA is poorly absorbed from an oil solution.
1.周国泰,化学危险品安全技术全书,化学工业出版社,1997 2.国家环保局有毒化学品管理办公室、北京化工研究院合编,化学品毒性法规环境数据手册,中国环境科学出版社.1992 3.Canadian Centre for Occupational Health and Safety,CHEMINFO Database.1998 4.Canadian Centre for Occupational Health and Safety, RTECS Database, 1989
[EN] CONVERSION OF 5-(HALOMETHYL)-2-FURALDEHYDE INTO POLYESTERS OF 5-METHYL-2FUROIC ACID<br/>[FR] CONVERSION DE 5- (HALOMÉTHYL) -2-FURALDÉHYDE EN POLYESTERS D'ACIDE 5-MÉTHYL-2-FUROÏQUE
申请人:XF TECHNOLOGIES INC
公开号:WO2015179088A1
公开(公告)日:2015-11-26
The present invention provides methods of synthesis of di-, tri-, and poly- ester derivatives of 5- methyl-2-furoic acid; di-, tri-, and poly- amide derivatives of 5-methyl-2-furoic acid; and di-, tri-, and poly- thioester derivatives of 5-methyl-2-furoic acid from 5-(halomethyl)-2-furaldehydes. These molecules are useful as plasticizers, solvents, coalescers, an ingredient in plastisol compositions, diluents, an ingredient in adhesive compositions, compatibilizer or compounding agent, or lubricant, as well as polymer compositions containing such ester compositions.
[EN] PHOTOCHROMIC AND ELECTROCHROMIC DIARYLETHENE COMPOUNDS WITH IMPROVED PHOTOSTABILITY AND SOLUBILITY<br/>[FR] COMPOSÉS DIARYLÉTHÈNE PHOTOCHROMIQUES ET ÉLECTROCHROMES PRÉSENTANT UNE PHOTOSTABILITÉ ET UNE SOLUBILITÉ AMÉLIORÉES
申请人:SWITCH MAT INC
公开号:WO2020198868A1
公开(公告)日:2020-10-08
A diarylethene compound reversibly convertible under photochromic and electrochromic conditions between a ring-open isomer of Formula (1A) and a ring-closed isomer of Formula (IB) wherein R5 is a substituted phenyl ring and Re is a substituted thiophene ring is provided. The photochromic-electrochromic diarylethene compound of Formula (1A)/(1B) have improved photochromic, electrochromic or photochromic and electrochromic properties, and is useful to provide variation of the light transmission properties of optical filters. The compound also possesses improved solubility making it suitable for incorporation in commercial products..
Process for the preparation of olmesartan medoxomil
申请人:KRKA, tovarna zdravil, d.d., Novo mesto
公开号:EP1816131A1
公开(公告)日:2007-08-08
The present invenion relates to an improved process for the manufacture of olmesartan and pharmaceutically acceptable salts and esters thereof as an active ingredient of a medicament for the treatment of hypertension and related diseases and conditions.
[EN] HEMI-AMINAL ETHERS AND THIOETHERS OF N-ALKENYL CYCLIC COMPOUNDS<br/>[FR] ÉTHERS ET THIOÉTHERS HÉMIAMINAUX DE COMPOSÉS CYCLIQUES N-ALCÉNYLIQUES
申请人:ISP INVESTMENTS INC
公开号:WO2014116560A1
公开(公告)日:2014-07-31
Described herein are hemi-aminal ethers and thioethers of N-alkenyl cyclic compounds that may be produced through a reaction comprising: (A) at least one first reactant represented by a structure (I), wherein X is a functionalized or unfunctionalized C1-C5 alkylene group optionally having one or more heteroatoms, and each R1, R2, and R3 is independently selected from the group consisting of hydrogen and functionalized and unfunctionalized alkyl groups optionally having one or more heteroatoms, and (B) at least one second reactant having at least one hydroxyl moiety or thiol moiety. The hemi-aminal ethers and thioethers of N-alkenyl cyclic compounds may comprise a polymerizable moiety, in which case they may be left as-is or used to create homopolymers or non-homopolymers, or they may not comprise a polymerizable moiety. A wide variety of formulations may be created using the hemi-aminal ethers and thioethers of N-alkenyl cyclic compounds, including personal care, oilfield, and construction formulations.
Hexahydrophthalate based compound and process for producing the same
申请人:Shieh Sung-Yueh
公开号:US20090281349A1
公开(公告)日:2009-11-12
A hexahydrophthalate based compound is adapted to use as a plasticizer that contains no phthalic acid and benzoic acid, possess physical properties superior to DEHA and DINA in transparency and adhesion and is friendly to organisms and the environment; and a process for producing the hexahydrophthalate based compound includes esterifying hexahydrophthalic anhydride, a diol, and a catalyst for decarboxylation to get hexahydrophthalic alcohol, and adding a monoacid into the hexahydrophthalic alcohol for further esterification, thereby obtaining the hexahydrophthalate based compound.