Substance Data

Chemical Substances Information

CAS RN MITI Number Chemical Substance Name Chemical Structure
25321-22-6 3-41 Dichlorobenzene -


Regulatory Classification

Regulatory Classification Cabinet Order No./Registration No. Chemical Substance Name date Remarks
Priority Assessment Chemical Substances (PACSs)  53  p-Dichlorobenzene  2011/04/01  If a chemical substance of the above CAS RN fulfills a certain condition, it corresponds to this Registration Number. 
Canceled - Priority Assessment Chemical Substances  52  o-Dichlorobenzene  2023/03/31  If a chemical substance of the above CAS RN fulfills a certain condition, it corresponds to this Registration Number. 
Existing chemical substances  -  Dichlorobenzene     
Type II Monitoring Chemical Substances (before amendment in FY 2009)  794  p-Dichlorobenzene  2004/07/02  If a chemical substance of the above CAS RN fulfills a certain condition, it corresponds to this Registration Number. 
Type III Monitoring Chemical Substances (before amendment in FY 2009)  23  o-Dichlorobenzene  2006/07/18  A chemical substance of the above CAS RN corresponds to Registration No.23 if a position of its substituent group is identical with that indicated by the chemical substance name of Registration Number 23. Note that if a position of its substituent group is identical with that indicated by the chemical substance name of Registration No.24 of Type III Monitoring Chemical Substances (before amendment in FY 2009), it corresponds to Registration No.24. (Registration No.24: p-Dichlorobenzene) 
Designated (before amendment)  398  o-Dichlorobenzene  2000/09/22  If a chemical substance of the above CAS RN fulfills a certain condition, it corresponds to this Registration Number. 


Screening Info

Publication year Human health effect Ecological effect Detailed assessment by experts Remarks
Exposure Class Hazard Class Priority Exposure Class Hazard Class Priority
2022 - - - 4 2 Medium Assessment has been conducted by the serial number 52 of Priority Assessment Chemical Substances (PACSs).
2021 - - - 4 2 Medium Assessment has been conducted by the serial number 52 of Priority Assessment Chemical Substances (PACSs).
2020 4 2 Medium Assessment has been conducted by the serial number 52 of Priority Assessment Chemical Substances (PACSs).
2019 4 2 Medium Assessment has been conducted by the serial number 52 of Priority Assessment Chemical Substances (PACSs).
2018 4 2 Medium Assessment has been conducted by the serial number 52 of Priority Assessment Chemical Substances (PACSs).
2017 4 2 Medium Assessment has been conducted by the serial number 52 of Priority Assessment Chemical Substances (PACSs).
2016 4 2 Medium Assessment has been conducted by the serial number 52 of Priority Assessment Chemical Substances (PACSs).
2015 4 2 Medium Assessment has been conducted by the serial number 52 of Priority Assessment Chemical Substances (PACSs).
2014 4 2 Medium Assessment has been conducted by the serial number 52 of Priority Assessment Chemical Substances (PACSs).
2010 3 2 High 4 2 Medium Assessment has been conducted by the serial number 398 of Type II Monitoring Chemical Substance (before amendment) and the serial number 23 of Type III Monitoring Chemical Substance (before amendment).
2010 2 2 High 2 2 High Assessment has been conducted by the serial number 794 of Type II Monitoring Chemical Substance (before amendment) and the serial number 24 of Type III 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  2023/03/31  52  3-41  o-Dichlorobenzene If a chemical substance of the above CAS RN fulfills a certain condition, it corresponds to this Registration Number.
PACS  2011/04/01  53  3-41  p-Dichlorobenzene 
Human health effect:x
Ecological effect:x
detailed assessment by experts for:
 If a chemical substance of the above CAS RN fulfills a certain condition, it corresponds to this Registration Number.
PACS  2011/04/01  52  3-41  o-Dichlorobenzene 
Human health effect:x
Ecological effect:
detailed assessment by experts for:
 If a chemical substance of the above CAS RN fulfills a certain condition, it corresponds to this Registration Number.


No. 53

Risk Assessment Phase 1-I

publication date Status of risk assessment publication source Remarks
2023/04/01 Risk Assessment Phase 1-I (human health effect)
2022/04/01 Risk Assessment Phase 1-I (human health effect)
2022/04/01 Risk Assessment Phase 1-I (human health effect)
2021/04/01 Risk Assessment Phase 1-I (human health effect)
2020/04/01 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

Risk Assessment Phase 1-Ⅱ, 1-Ⅲ

publication date Status of risk assessment publication source Remarks
2023/04/01 Risk Assessment Phase 1-II (ecological effect)
2022/04/01 Risk Assessment Phase 1-II (ecological effect)
2021/04/01 Risk Assessment Phase 1-II (ecological effect)
2020/04/01 Risk Assessment Phase 1-II (ecological effect)
2019/04/01 Risk Assessment Phase 1-II (ecological effect)
2018/03/22 Risk Assessment Phase 1-II (ecological effect)
2016/12/27 Risk Assessment Phase 1-II (ecological effect)
2014/07/31 Risk Assessment Phase 1-II (ecological effect)


No. 52

Risk Assessment Phase 1-I

publication date Status of risk assessment publication source Remarks
2022/04/01 Risk Assessment Phase 1-I (human health effect)
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 Risk Assessment Phase 1-I (human health effect)
2015/11/26 Risk Assessment Phase 1-I
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
2021 3-41 53 p-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 62,667
2021 3-41 52 o-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 17,508
2020 3-41 53 p-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 48,871
2020 3-41 52 o-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 14,519
2019 3-41 53 p-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 52,857
2019 3-41 52 o-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 13,249
2018 3-41 53 p-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 56,570
2018 3-41 52 o-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 16,628
2017 3-41 53 p-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 51,286
2017 3-41 52 o-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 17,027
2016 3-41 53 p-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 47,398
2016 3-41 52 o-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 11,951
2015 3-41 53 p-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 53,212
2015 3-41 52 o-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 11,693
2014 3-41 53 p-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 46,908
2014 3-41 52 o-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 10,896
2013 3-41 53 p-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 50,461
2013 3-41 52 o-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 12,607
2012 3-41 53 p-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 45,283
2012 3-41 52 o-Dichlorobenzene Priority Assessment Chemical Substances (PACSs) 11,100


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