Chlorpyrifos
CAS Number
2921-88-2Synonym
Dursban™, Equity™, Lorsban™, Whitmire PT 270, Empire 20, Chemical name (IUPAC): O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
Occurrence/Use
Organophosphate pesticide
| Child-specific refence dose (chRD) (mg/kg-day, unless noted): |
1.0 E-4
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| Last chRD revision: |
06/2010
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| chRD Comments: |
| Comments/References: |
Child-Specific Reference Dose (chRD): 0.0001 mg/kg-day (This reference value is based on cholinesterase inhibition, and is not related to Cancer Potency Factors.) |
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Proposition 65
| Reproductive Toxicity: |
Currently listed
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| Listed for: |
Developmental Toxicity
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| Developmental Toxicity | |
| Date of Listing: |
12/15/2017
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| Basis for Listing: |
State's Qualified Experts
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| Reproductive Toxicity | |
| Maximum Allowable Dose Level (MADL) : |
7.2 (dermal) µg/day
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| Maximum Allowable Dose Level (MADL) - Inhalation: |
0.58 µg/day
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| Maximum Allowable Dose Level (MADL) - Oral: |
0.58 µg/day
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| Reproductive Toxicity: |
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Public notices related to this chemical:
- Announcement of DARTIC Meeting and Availability of Hazard Identification Materials for Chlorpyrifos and n-Hexane
- Chemicals Listed Effective December 15, 2017 as Known to the State of California to Cause Reproductive Toxicity: Chlorpyrifos and n-Hexane
- Amendment to Section 25805 Specific Regulatory Levels: Chemicals Causing Reproductive Toxicity Maximum Allowable Dose Levels For Chlorpyrifos (Oral, Inhalation And Dermal Exposures)
- Notice of Adoption of Amendment to Section 25805 Specific Regulatory Levels: Chemicals Causing Reproductive Toxicity Maximum Allowable Dose Levels For Chlorpyrifos (Oral, Inhalation And Dermal Exposures)
Comments
Notice of Adoption of Amendment to Section 25805 Specific Regulatory Levels: Chemicals Causing Reproductive Toxicity Maximum Allowable Dose Levels For Chlorpyrifos (Oral, Inhalation And Dermal Exposures)