Substance Data

Chemical Substances Information

CAS RN MITI Number Chemical Substance Name Chemical Structure
106-88-7 2-229 2-Ethyloxirane


Regulatory Classification

Regulatory Classification Cabinet Order No./Registration No. Chemical Substance Name date Remarks
Canceled - Priority Assessment Chemical Substances  21  1,2-Epoxybutane  2022/03/31   
Existing chemical substances  -  Butylene oxide     
Type II Monitoring Chemical Substances (before amendment in FY 2009)  1024  1,2-Epoxybutane  2010/04/01   


Screening Info

Publication year Human health effect Ecological effect Detailed assessment by experts Remarks
Exposure Class Hazard Class Priority Exposure Class Hazard Class Priority
2021 - - - Out of classification 3 Out of classification Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2020 Out of classification 3 Out of classification Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2019 Out of classification 3 Out of classification Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2018 Out of classification 3 Out of classification Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2017 Out of classification 3 Out of classification Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2016 Out of classification 3 Out of classification Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2015 Out of classification 3 Out of classification Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2014 Out of classification 3 Out of classification Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2010 5 2 Medium - - - Result of detailed assessment by experts on human health effect, it has been selected as Priority Assessment Chemical Substances (PACSs). 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
Canceled PACS  2022/03/31  21  2-229  1,2-Epoxybutane
PACS  2011/04/01  21  2-229  1,2-Epoxybutane 
Human health effect:x
Ecological effect:
detailed assessment by experts for:Human health effect


No. 21

Risk Assessment Phase 1-I

publication date Status of risk assessment publication source Remarks
2021/04/01 Risk Assessment Phase 1-I (human health effect)
2020/04/01 Risk Assessment Phase 1-I (human health effect)
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 Monitored for production/import volume (human health effect)
2015/11/26 Monitored for production/import volume
2014/07/31 Risk Assessment Phase 1-I





Manufactured and/or imported quantities

Fiscal year MITI Number Registration No. Chemical Substance Name Classification Manufactured and/or imported quantities (t) Remarks
2020 2-229 21 1,2-Epoxybutane Priority Assessment Chemical Substances (PACSs) 607
2019 2-229 21 1,2-Epoxybutane Priority Assessment Chemical Substances (PACSs) 837
2018 2-229 21 1,2-Epoxybutane Priority Assessment Chemical Substances (PACSs) 828
2017 2-229 21 1,2-Epoxybutane Priority Assessment Chemical Substances (PACSs) 631
2016 2-229 21 1,2-Epoxybutane Priority Assessment Chemical Substances (PACSs) 848
2015 2-229 21 1,2-Epoxybutane Priority Assessment Chemical Substances (PACSs) 736
2014 2-229 21 1,2-Epoxybutane Priority Assessment Chemical Substances (PACSs) 717
2013 2-229 21 1,2-Epoxybutane Priority Assessment Chemical Substances (PACSs) 617
2012 2-229 21 1,2-Epoxybutane Priority Assessment Chemical Substances (PACSs) 886


Published information

publication source publication date Chemical Substance Name Published Result Judgement Remarks
Official Bulletin of Ministry of International Trade and Industry 1997/12/26 1,2-epoxybutane Chemical substance determinated to be ready biodegradable




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