Substance Data

Chemical Substances Information

CAS Registry Number MITI Number Chemical Substance Name Chemical Structure
78-79-5 2-20 Isoprene


Regulatory Classification

Regulatory Classification Cabinet Order No./Registration No. Chemical Substance Name date Remarks
Priority Assessment Chemical Substances (PACSs)  Isoprene  2011/04/01   
Existing chemical substances  Pentadiene     
Designated (before amendment)  369  Isoprene  2000/09/22   


Screening Info

Publication year Human health effect Ecological effect Detailed assessment by experts Remarks
Exposure Class Hazard Class Priority Exposure Class Hazard Class Priority
2018 4 2 Medium Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2017 4 2 Medium Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2016 4 2 Medium Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2015 4 2 Medium Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2014 4 2 Medium Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2010 3 2 High - - - Assessment has been conducted by the serial number of Type II Monitoring Chemical Substance (before amendment).


Remarks


Information of Priority Assessment Chemical Substance

Information of designation

Classification Designated date No. MITI No. Name of Priority Assessment Chemical Substance Rationale for designation Remarks
PACS  2011/04/01  2-20  Isoprene
Human health effect:x
Ecological effect:
detailed assessment by experts for:


No. 5

Risk Assessment Phase 1-I

publication date Status of risk assessment publication source Remarks
2019/04/01 Risk Assessment Phase 1-I (human health effect)
2018/03/22 Risk Assessment Phase 1-I (human health effect)
2016/12/27 Risk Assessment Phase 1-I (human health effect)
2015/11/26 Risk Assessment Phase 1-I
2014/07/31 Risk Assessment Phase 1-I





Other information

The list of high priority chemicals

CAS Registry Number Chemical Substance Name(Reference) International Status of Collection Plan and report of sponsors Remarks
78-79-5 isoprene OECD HPV Program Assessed

Manufactured and/or imported quantities

Fiscal year MITI Number Registration No. Chemical Substance Name Classification Manufactured and/or imported quantities (t) Remarks
2017 2-20 5 Isoprene Priority Assessment Chemical Substances (PACSs) 159,556
2016 2-20 5 Isoprene Priority Assessment Chemical Substances (PACSs) 140,660
2015 2-20 5 Isoprene Priority Assessment Chemical Substances (PACSs) 138,816
2014 2-20 5 Isoprene Priority Assessment Chemical Substances (PACSs) 99,238
2013 2-20 5 Isoprene Priority Assessment Chemical Substances (PACSs) 113,887
2012 2-20 5 Isoprene Priority Assessment Chemical Substances (PACSs) 87,412


Published information

publication source publication date Chemical Substance Name Published Result Judgement Remarks
Official Bulletin of Ministry of International Trade and Industry 1988/12/28 isoprene Chemical substance determinated to be non or not highly bioaccumulative




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