Substance Data

Chemical Substances Information

CAS RN MITI Number Chemical Substance Name Chemical Structure
1261391-40-5 - Compound of (1-hydroxyethane-1,1-diyl)diphosphonic acid and 1-aminopropan-2-ol


Regulatory Classification

Regulatory Classification Cabinet Order No./Registration No. Chemical Substance Name date Remarks
Priority Assessment Chemical Substances (PACSs)  217  (1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt  2017/04/03   
Canceled - Priority Assessment Chemical Substances  123  (1-Hydroxyethane-1,1-diyl)diphosphonic acid  2017/04/03  It is currently included in PACSs No. 217 ((1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt). 


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  2017/04/03  217    (1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt 
Human health effect:
Ecological effect:x
detailed assessment by experts for:
Canceled PACS  2017/04/03  123    (1-Hydroxyethane-1,1-diyl)diphosphonic acid It is currently included in PACSs No. 217 ((1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt).
PACS  2012/12/21  123    (1-Hydroxyethane-1,1-diyl)diphosphonic acid 
Human health effect:
Ecological effect:x
detailed assessment by experts for:


No. 217

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)


No. 123

Risk Assessment Phase 1-I

publication date Status of risk assessment publication source Remarks
2016/12/27 Risk Assessment Phase 1-II (ecological effect)
2015/11/26 Risk Assessment Phase 1-I
2014/07/31 Risk Assessment Phase 1-I





Other information

Not regarded as a new chemical substance in "Implementation of the Act on the Evaluation of Chemical Substances and Regulation of Their Manufacture, etc."(operation notification ）
MITI number Chemical Substances Name Regulatory Classification Reference Article No. of CSCL Implementation Notice Remarks
2-2936 (1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt Priority Assessment Chemical Substances (PACSs) 217 / Existing chemical substances Combination 1
2-323 Aminopropanol Existing chemical substances Combination 1
2-323 Aminopropanol Existing chemical substances Combination 2
2-4162 (1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt Priority Assessment Chemical Substances (PACSs) 217 Combination 2 
Indicated "combination" in case of more than one case of not treated as a new chemical substance.


Manufactured and/or imported quantities

Fiscal year MITI Number Registration No. Chemical Substance Name Classification Manufactured and/or imported quantities (t) Remarks
2021 2-2936 217 (1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt Priority Assessment Chemical Substances (PACSs) 3,983 MITI number: 2-2936, 2-4162
2020 2-2936 217 (1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt Priority Assessment Chemical Substances (PACSs) 3,574 MITI number: 2-2936, 2-4162
2019 2-2936 217 (1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt Priority Assessment Chemical Substances (PACSs) 3,451 MITI number: 2-2936, 2-4162
2018 2-2936 217 (1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt Priority Assessment Chemical Substances (PACSs) 3,531 MITI number: 2-2936, 2-4162
2017 2-2936 217 (1-Hydroxyethane-1,1-diyl)diphosphonic acid or its potassium or sodium salt Priority Assessment Chemical Substances (PACSs) 3,605 MITI number: 2-2936, 2-4162
2016 2-2936 123 (1-Hydroxyethane-1,1-diyl)diphosphonic acid Priority Assessment Chemical Substances (PACSs) 2,746
2015 2-2936 123 (1-Hydroxyethane-1,1-diyl)diphosphonic acid Priority Assessment Chemical Substances (PACSs) 2,464
2014 2-2936 123 (1-Hydroxyethane-1,1-diyl)diphosphonic acid Priority Assessment Chemical Substances (PACSs) 2,428
2013 2-2936 123 (1-Hydroxyethane-1,1-diyl)diphosphonic acid Priority Assessment Chemical Substances (PACSs) 2,438
2012 2-2936 123 (1-Hydroxyethane-1,1-diyl)diphosphonic acid Priority Assessment Chemical Substances (PACSs) 1,784


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