O-ethyl hydrogen ethylphosphonothioate, also known as ethylphosphonothioic acid O-ethyl ester, is an organophosphorus compound with the chemical formula C4H11O2PS. It is a colorless liquid with a pungent odor and is used as an intermediate in the synthesis of various pesticides, particularly organophosphorus insecticides. O-ethyl hydrogen ethylphosphonothioate is known for its high reactivity and can be toxic to humans and animals, causing symptoms such as respiratory distress, muscle twitching, and seizures. Due to its potential health risks, it is essential to handle O-ethyl hydrogen ethylphosphonothioate with proper safety measures and to dispose of it according to environmental regulations.

4789-36-0

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Basic information
1. Product Name: O-ethyl hydrogen ethylphosphonothioate
2. Synonyms:
3. CAS NO:4789-36-0
4. Molecular Formula: C₄H₁₁O₂PS
5. Molecular Weight: 154.1677
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 210.2°C at 760 mmHg
3. Flash Point: 80.9°C
4. Appearance: N/A
5. Density: 1.181g/cm³
6. Vapor Pressure: 0.0444mmHg at 25°C
7. Refractive Index: 1.494
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: O-ethyl hydrogen ethylphosphonothioate(CAS DataBase Reference)
11. NIST Chemistry Reference: O-ethyl hydrogen ethylphosphonothioate(4789-36-0)
12. EPA Substance Registry System: O-ethyl hydrogen ethylphosphonothioate(4789-36-0)
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: 4789-36-0(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4789-36-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,8 and 9 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4789-36:
(6*4)+(5*7)+(4*8)+(3*9)+(2*3)+(1*6)=130
130 % 10 = 0
So 4789-36-0 is a valid CAS Registry Number.

4789-36-0Upstream product

7776-66-1 O-ethylethylthiophosphonic acid

4789-36-0Downstream Products

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