Substance Data

Chemical Substances Information

CAS RN MITI Number Chemical Substance Name Chemical Structure
75-59-2 2-186 Tetramethylammonium hydroxide


Regulatory Classification

Regulatory Classification Cabinet Order No./Registration No. Chemical Substance Name date Remarks
Priority Assessment Chemical Substances (PACSs)  17  Tetramethylammonium hydroxide  2011/04/01   
Type II Monitoring Chemical Substances (before amendment in FY 2009)  1020  Tetramethylammonium hydroxide  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
2023 - - - 5 2 Medium Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2022 - - - 5 2 Medium Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2021 - - - 5 2 Medium Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2020 4 2 Medium Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2019 4 2 Medium Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
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 5 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 5 1 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  17  2-186  Tetramethylammonium hydroxide 
Human health effect:x
Ecological effect:
detailed assessment by experts for:


No. 17

Risk Assessment Phase 1-I

publication date Status of risk assessment publication source Remarks
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

Risk Assessment Phase 1-Ⅱ, 1-Ⅲ

publication date Status of risk assessment publication source Remarks
2024/04/01 Risk Assessment Phase 1-II (human health effect)
2023/04/01 Risk Assessment Phase 1-II (human health effect)
2022/04/01 Risk Assessment Phase 1-II (human health effect)
2021/04/01 Risk Assessment Phase 1-II (human health effect)
2020/04/01 Risk Assessment Phase 1-II (human health effect)
2019/04/01 Risk Assessment Phase 1-II (human health effect)






Other information

The list of high priority chemicals

CAS RN Chemical Substance Name(Reference) International Status of Collection Plan and report of sponsors Remarks
75-59-2 tetramethylammonium hydroxide 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
2023 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 12,105
2022 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 20,575
2021 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 24,555
2020 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 15,721
2019 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 16,185
2018 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 12,851
2017 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 14,765
2016 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 13,574
2015 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 14,459
2014 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 10,147
2013 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 9,388
2012 2-186 17 Tetramethylammonium hydroxide Priority Assessment Chemical Substances (PACSs) 7,571


Published information

publication source publication date Chemical Substance Name Published Result Judgement Remarks
Official Bulletin of Economy, Trade and Industry 2002/11/08 tetramethylammonium hydroxide Chemical substance determinated to be not persistent


Remarks 

Japan Existing Chemical Database [MHLW] (Link)


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