104743-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104743-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,7,4 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 104743-31:
(8*1)+(7*0)+(6*4)+(5*7)+(4*4)+(3*3)+(2*3)+(1*1)=99
99 % 10 = 9
So 104743-31-9 is a valid CAS Registry Number.
104743-31-9Relevant articles and documents
Method for preparing dye intermediate N-ethyl-N-gamma-hydroxyl n-propyl m-toluidine and esterification product thereof
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Paragraph 0053; 0054, (2020/01/08)
The invention discloses a method for preparing a dye intermediate N-ethyl-N-gamma-hydroxyl n-propyl m-toluidine and an esterification product thereof. The method comprises the steps of adding a cheapacid binding agent into raw materials according to a cer
