Urea, N-(2-chlorophenyl)-N'-(2,6-dimethyl-4-pyrimidinyl)-, also known as Chlorpyrifos, is a widely used organophosphate insecticide. It is a white crystalline solid with the chemical formula C9H11Cl3N3O3PS. Chlorpyrifos is effective against a broad spectrum of pests, including insects, mites, and nematodes, and is commonly used in agriculture, horticulture, and public health. It works by inhibiting the enzyme acetylcholinesterase, which disrupts the nervous system of the target pests, leading to paralysis and death. Due to its potential health and environmental risks, the use of Chlorpyrifos has been restricted or banned in several countries.

79513-87-4

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Basic information
1. Product Name: Urea, N-(2-chlorophenyl)-N'-(2,6-dimethyl-4-pyrimidinyl)-
2. Synonyms:
3. CAS NO:79513-87-4
4. Molecular Formula: C13H13ClN4O
5. Molecular Weight: 276.725
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: Urea, N-(2-chlorophenyl)-N'-(2,6-dimethyl-4-pyrimidinyl)-(CAS DataBase Reference)
10. NIST Chemistry Reference: Urea, N-(2-chlorophenyl)-N'-(2,6-dimethyl-4-pyrimidinyl)-(79513-87-4)
11. EPA Substance Registry System: Urea, N-(2-chlorophenyl)-N'-(2,6-dimethyl-4-pyrimidinyl)-(79513-87-4)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 79513-87-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 79513-87-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,5,1 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 79513-87:
(7*7)+(6*9)+(5*5)+(4*1)+(3*3)+(2*8)+(1*7)=164
164 % 10 = 4
So 79513-87-4 is a valid CAS Registry Number.

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