Wikipedia:WikiProject Chemicals/Chembox validation/VerifiedDataSandbox and 1,2-Cyclohexane dicarboxylic acid diisononyl ester: Difference between pages

| Verifiedfields = changed

| verifiedrevid = 477199520

| ImageFile = 1,2-Cyclohexane dicarboxylic acid diisononyl ester.svg

| PIN = Bis(7-methyloctyl) cyclohexane-1,2-dicarboxylate

| OtherNames = Cyclohexane-1,2-dicarboxylic acid diisononyl ester;<br />

Hexamoll DINCH (tradename)

|Section1={{Chembox Identifiers

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo = 166412-78-8

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = H26MNT7GT7

| PubChem = 11524680

| EC_number = 605-439-7

| ChEMBL = 3182578

| SMILES = O=C(OCCCCCCC(C)C)C1C(C(=O)OCCCCCCC(C)C)CCCC1

}}

|Section2={{Chembox Properties

| Density = 0.944–0.954 g·cm{{sup|−3}}<ref name="BASF technical leaflet"/>

| MeltingPt = [[Pour point]]:

| MeltingPtC = −54

| MeltingPt_ref = <ref name="BASF technical leaflet"/>

| Solubility =

}}

|Section3={{Chembox Hazards

| ExternalSDS = [http://www.basf.co.kr/02_products/03_chemicals/solvent&plasticizers/document/down.asp?file=DINCH%20MSDS(EN).pdf BASF Safety Data Sheet]

}}

'''1,2-Cyclohexane dicarboxylic acid diisononyl ester''' (DINCH) is a mixture of [[organic compound]]s with the formula C₆H₁₀(CO₂C₉H₁₉)₂. DINCH is colorless oil. It is used as a [[plasticizer]] for the manufacture of flexible plastic articles in sensitive application areas such as toys, medical devices, and food packaging. It is of interest as an alternative for [[phthalate]] plasticizers, which are implicated as [[endocrine disruptor]]s.<ref name=Zamkowska2018>{{cite journal | vauthors = Zamkowska D, Karwacka A, Jurewicz J, Radwan M | title = Environmental exposure to non-persistent endocrine disrupting chemicals and semen quality: An overview of the current epidemiological evidence | journal = International Journal of Occupational Medicine and Environmental Health | volume = 31 | issue = 4 | pages = 377–414 | date = July 2018 | pmid = 30160090 | doi = 10.13075/ijomeh.1896.01195 | doi-access = free | url = http://pdfs.semanticscholar.org/8e72/66d47a26a734837a7976825ca93adec4ff31.pdf }}</ref>

== Production ==

DINCH can be produced by the [[catalytic hydrogenation]] of [[diisononyl phthalate]].<ref>[http://www.omnexus.com/home/survey/index.aspx?idsurvey=326 Innovative plasticizer alternative to phthalates for non-PVC applications]</ref><ref>Patent WO 99/32427, "Verfahren zur Hydrierung von Benzolpolycarbonsäuren oder Derivaten davon unter Verwendung eines Makroporen aufweisenden Katalysators", July 1, 1999, BASF AG</ref> Alternatively it can be prepared by [[Diels-Alder reaction]] of a diisononyl maleate with 1,3-butadiene followed by hydrogenation. In the case of the [[catalytic hydrogenation]] the [[aromatic|aromatic, planar]] part of the [[diisononyl phthalate]] is transformed to a cyclohexane ring. Commercial DINCH consists of 90% of the cis and 10% of the trans (chiral) isomers.

[[BASF]] sells DINCH under the tradename of Hexamoll DINCH.<ref>[http://www.allbusiness.com/manufacturing/plastics-rubber-products-manufacturing/281115-1.html Flexible vinyls get new non-phthalate plasticizer. (Keeping Up With Additives).] (September 1, 2002). ''Plastics Technology''. Allbusiness.com. Accessed 2009-02-12.</ref>

==Use==

In February 2009, [[Mattel]] and Learning Curve confirmed that they were substituting phthalates with Hexamoll DINCH and [[citrate]]-based plasticizers.<ref name="NPR">Sarah Varney (February 12, 2009). [https://www.npr.org/templates/story/story.php?storyId=100038395 New Safety Law Doesn't Mean All's Well In Toyland]. NPR. Accessed 2009-02-12.</ref>

== Regulatory approval ==

===Food contact===

In the [[European Union]] the [[EFSA|European Food Safety Authority]] approved DINCH for a wide variety of food contact applications in October 2006.<ref>EFSA: [http://www.efsa.europa.eu/sites/default/files/scientific_output/files/main_documents/395.pdf Opinion of the Scientific Panel on food additives, flavourings, processing aids and materials in contact with food (AFC) on a request related to a 12th list of substances] {{Webarchive|url=https://web.archive.org/web/20180603070602/http://www.efsa.europa.eu/sites/default/files/scientific_output/files/main_documents/395.pdf |date=2018-06-03 }} for [[food contact materials]], EFSA-Journal, 2006, 395–401, 1–21.</ref> In 2007 DINCH has been added to Annex III of the "Directive 2002/72/EC relating to plastic materials and articles intended to come into contact with food".<ref>Official Journal of the European Union: ''[http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2007:097:0050:0069:EN:PDF Corrigendum to Commission Directive 2007/19/EC of 30 March 2007 amending Directive 2002/72/EC relating to plastic materials and articles intended to come into contact with food and Council Directive 85/572/EEC laying down the list of simulants to be used for testing migration of constituents of plastic materials and articles intended to come into contact with foodstuffs]'', April 2, 2007.</ref> The EU Directive 2002/72 has meanwhile been superseded by Regulation (EU) No 10/2011.<ref>[http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CONSLEG:2011R0010:20111230:EN:PDF COMMISSION REGULATION (EU) No 10/2011 of 14 January 2011 on plastic materials and articles intended to come into contact with food] Accessed 2013-08-05</ref> Hexamoll DINCH is listed in Annex I of Regulation (EU) No 10/2011 by as Food Conctact Material (FCM) 775 by its chemical name, i.e. as 1,2-cyclohexanedicarboxylic acid, diisononylester.

===Toys===

In the European Union 1,2-cyclohexane dicarboxylic acid diisononyl ester was not listed in directive 2005/84/EC. These restrictions for certain phthalates are now transferred into Annex XVII, 51 and 52 of Regulation (EC) No 1907/2006 which ban the use of certain phthalates in toys and childcare articles and thus DINCH can be used safely in toys and childcare articles.<ref>Official Journal of the European Union: ''[http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2005:344:0040:0043:en:PDF Directive 2005/84/EC of the European Parliament and of the Council of 14 December 2005 amending for the 22nd time Council Directive 76/769/EEC on the approximation of the laws, regulations and administrative provisions of the Member States relating to restrictions on the marketing and use of certain dangerous substances and preparations (phthalates in toys and childcare articles)]''</ref>

== Possible health effects ==

A research group from [[Harvard University|Harvard]] and [[Centers for Disease Control and Prevention|CDC]] found suggestive negative associations between urinary MHiNCH, the monoester of DINCH, a minor urinary metabolite. . Their research at a [[fertility clinic]] showed that women who had been exposed to DINCH had lower, but statistically not significant [[estradiol]] hormone levels and fewer, though not statistically significant number of [[oocyte]]s in their ovaries. However, urinary MHiNCH concentrations were unrelated to mature oocyte yield and endometrial wall thickness.<ref>{{Cite journal|last1=Mínguez-Alarcón|first1=Lidia|last2=Souter|first2=Irene|last3=Chiu|first3=Yu-Han|last4=Williams|first4=Paige L.|last5=Ford|first5=Jennifer B.|last6=Ye|first6=Xiaoyun|last7=Calafat|first7=Antonia M.|last8=Hauser|first8=Russ|date=2016-11-01|title=Urinary concentrations of cyclohexane-1,2-dicarboxylic acid monohydroxy isononyl ester, a metabolite of the non-phthalate plasticizer di(isononyl)cyclohexane-1,2-dicarboxylate (DINCH), and markers of ovarian response among women attending a fertility center|journal=Environmental Research|volume=151|pages=595–600|doi=10.1016/j.envres.2016.08.012|pmc=5071161|pmid=27591839|bibcode=2016ER....151..595M}}</ref> The results are inconclusive and therefore, the authors suggest that more epidemiological studies would be needed for clarification.

The Swedish IVL Environmental Research Institute and researches from the Department of Environmental Science and Analytical Chemistry of Stockholm University recommend that "children's exposure to DINCH should be investigated in more detail and exposure to the general population should be closely monitored"<ref>{{Cite journal|last1=Bui|first1=Thuy T.|last2=Giovanoulis|first2=Georgios|last3=Cousins|first3=Anna Palm|last4=Magnér|first4=Jörgen|last5=Cousins|first5=Ian T.|last6=de Wit|first6=Cynthia A.|date=2016-01-15|title=Human exposure, hazard and risk of alternative plasticizers to phthalate esters|journal=Science of the Total Environment|volume=541|pages=451–467|doi=10.1016/j.scitotenv.2015.09.036|pmid=26410720|bibcode=2016ScTEn.541..451B}}</ref> as DINCH is used as an alternative plasticizer in e.g. children's toys.

The Chronic Hazard Advisory Panel of the [[U.S. Consumer Product Safety Commission]] "strongly encourages the appropriate U.S. agencies to obtain the necessary toxicological and exposure data to assess any potential risk from DINX" because of "lack of publicly available information".<ref>{{Cite journal|last1=Lioy|first1=Paul J|last2=Hauser|first2=Russ|last3=Gennings|first3=Chris|last4=Koch|first4=Holger M|last5=Mirkes|first5=Philip E|last6=Schwetz|first6=Bernard A|last7=Kortenkamp|first7=Andreas|title=Assessment of phthalates/phthalate alternatives in children's toys and childcare articles: Review of the report including conclusions and recommendation of the Chronic Hazard Advisory Panel of the Consumer Product Safety Commission|journal=Journal of Exposure Science and Environmental Epidemiology|volume=25|issue=4|pages=343–353|doi=10.1038/jes.2015.33|year=2015|pmid=25944701|doi-access=free}}</ref><ref>{{Cite web|url=https://www.cpsc.gov/PageFiles/169876/CHAP-REPORT-FINAL.pdf|title=Report to the U.S. Consumer Product Safety Commission by the CHRONIC HAZARD ADVISORY PANEL ON PHTHALATES AND PHTHALATE ALTERNATIVES|date=2014|website=|publisher=United States Consumer Product Safety Commission|access-date=|archive-date=2016-10-09|archive-url=https://web.archive.org/web/20161009183117/https://www.cpsc.gov/PageFiles/169876/CHAP-REPORT-FINAL.pdf|url-status=dead}}</ref>

A French group from the University of Clermont-Ferrand noted that clinical data and data regarding the migration from [[Medical device|Medical Devices]] would be rare. The Project was funded by the French Agency for the Safety of Health Products ([[Agence Nationale de Sécurité du Médicament et des Produits de Santé|ANSM]]). It remains unclear why this Research Group was not able to identify the published human biomonitoring data which give a perfect overview on population exposure of alternative plasticizers (e.g. DINCH/DINX) and their [[metabolite]]s.<ref>{{Cite journal|last1=Bernard|first1=L.|last2=Décaudin|first2=B.|last3=Lecoeur|first3=M.|last4=Richard|first4=D.|last5=Bourdeaux|first5=D.|last6=Cueff|first6=R.|last7=Sautou|first7=V.|date=2014-11-01|title=Analytical methods for the determination of DEHP plasticizer alternatives present in medical devices: A review|journal=Talanta|volume=129|pages=39–54|doi=10.1016/j.talanta.2014.04.069|pmid=25127563}}</ref>

A report by the Danish Ministry of the Environment states that the available data for DINCH do not indicate a need for further investigations. Further, the conclusion is that 3 of the evaluated plasticizers, namely the substances COMGHA, DEHT and DINCH may be seen as the most promising alternatives, as these substances have an extended data set (complying to Annex X data requirements, i.e. a two-generation reproduction study) without indicating specific concern for reproductive toxicity or endocrine activity.<ref>{{Cite web|url=http://www2.mst.dk/Udgiv/publications/2014/03/978-87-93178-27-4.pdf|title=Alternatives to classified phthalates in medical devices, Danish Environmental Protection Agency, Environmental Project No. 1557, 2014, Copenhagen.|author1=B. S. Nielsen |author2=D. Nørgaard Andersen |author3=E. Giovalle |author4=M. Bjergstrøm |author5=P.B. Larsen |date=2014|website=|access-date=}}</ref>

[[Toxicogenomics|Toxicogenomic]] screening showed that 648 [[gene]]s were significantly changed after 48 hours exposure to DINCH suggesting that "DINCH is biologically active".<ref>{{Cite journal|last1=Nardelli|first1=Thomas C.|last2=Erythropel|first2=Hanno C.|last3=Robaire|first3=Bernard|date=2015-10-07|title=Toxicogenomic Screening of Replacements for Di(2-Ethylhexyl) Phthalate (DEHP) Using the Immortalized TM4 Sertoli Cell Line|journal=PLOS ONE|volume=10|issue=10|pages=e0138421|doi=10.1371/journal.pone.0138421|issn=1932-6203|pmc=4596883|pmid=26445464|bibcode=2015PLoSO..1038421N|doi-access=free}}</ref>

==References==

<references/>

==External links==

* [http://www.hexamoll.com Hexamoll]

{{DEFAULTSORT:Cyclohexane Dicarboxylic Acid Diisononyl Ester, 1, 2-}}

[[Category:Plasticizers]]

[[Category:Carboxylate esters]]

[[Category:Nonyl esters]]