Substance Data

Chemical Substances Information

CAS RN MITI Number Chemical Substance Name Chemical Structure
8013-90-9 3-2387 Ionone -


Regulatory Classification

Regulatory Classification Cabinet Order No./Registration No. Chemical Substance Name date Remarks
Priority Assessment Chemical Substances (PACSs)  133  (E)-4-(2,6,6-Trimethylcyclohex-1-en-1-yl)but-3-en-2-one  2012/12/21  If a chemical substance of the above CAS RN fulfills a certain condition, it corresponds to this Registration Number. 
Existing chemical substances  -  Ionone     


Screening Info

Publication year Human health effect Ecological effect Detailed assessment by experts Remarks
Exposure Class Hazard Class Priority Exposure Class Hazard Class Priority
2024 3 3 Medium - - - Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2023 4 3 Medium - - - Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2022 4 3 Medium - - - Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2021 4 3 Medium - - - Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).


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  2012/12/21  133  3-2387  (E)-4-(2,6,6-Trimethylcyclohex-1-en-1-yl)but-3-en-2-one 
Human health effect:
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.


No. 133

Risk Assessment Phase 1-I

publication date Status of risk assessment publication source Remarks
2026/04/01 Risk Assessment Phase 1-I (ecological effect)
2025/04/01 Risk Assessment Phase 1-I (ecological effect)
2024/04/01 Risk Assessment Phase 1-I (ecological effect)
2023/04/01 Risk Assessment Phase 1-I (ecological effect)
2022/04/01 Risk Assessment Phase 1-I (ecological effect)
2021/04/01 Risk Assessment Phase 1-I (ecological effect)
2020/04/01 Risk Assessment Phase 1-I (ecological effect)
2019/04/01 Risk Assessment Phase 1-I (ecological effect)
2018/03/22 Risk Assessment Phase 1-I (ecological effect)
2016/12/27 Risk Assessment Phase 1-I (ecological effect)
2015/11/26 Risk Assessment Phase 1-I
2014/07/31 Monitored for production/import volume



Manufactured and/or imported quantities

Fiscal year MITI Number Registration No. Chemical Substance Name Classification Manufactured and/or imported quantities (t) Remarks
2024 3-2387 133 (E)-4-(2,6,6-Trimethylcyclohex-1-en-1-yl)but-3-en-2-one Priority Assessment Chemical Substances (PACSs) 106
2022 3-2387 133 (E)-4-(2,6,6-Trimethylcyclohex-1-en-1-yl)but-3-en-2-one Priority Assessment Chemical Substances (PACSs) 137
2020 3-2387 133 (E)-4-(2,6,6-Trimethylcyclohex-1-en-1-yl)but-3-en-2-one Priority Assessment Chemical Substances (PACSs) 108


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