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Sec-Butylphosphondithio-dianhydrosulfid, also known as sec-butyl phosphorodithioic dianhydride, is a chemical compound with the formula (CH3)2CHCH2PS2. It is a colorless to pale yellow liquid that is soluble in organic solvents and has a pungent odor. sec.-Butylphosphondithio-dianhydrosulfid is primarily used as a precursor in the synthesis of various organophosphorus compounds, such as pesticides and flame retardants. It is also employed as a vulcanization accelerator in the rubber industry. Due to its reactivity and potential toxicity, it is essential to handle sec-butylphosphondithio-dianhydrosulfid with caution and proper safety measures.

4643-84-9

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4643-84-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4643-84-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,4 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4643-84:
(6*4)+(5*6)+(4*4)+(3*3)+(2*8)+(1*4)=99
99 % 10 = 9
So 4643-84-9 is a valid CAS Registry Number.

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