25458-47-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25458-47-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,4,5 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 25458-47:
(7*2)+(6*5)+(5*4)+(4*5)+(3*8)+(2*4)+(1*7)=123
123 % 10 = 3
So 25458-47-3 is a valid CAS Registry Number.
25458-47-3Relevant articles and documents
Preparation method of sulfasalazine impurity D
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Paragraph 0040; 0045; 0051; 0056, (2020/07/24)
The invention discloses a preparation method of a sulfasalazine impurity D, belongs to the field of drug impurity synthesis, and provides the preparation method of the sulfasalazine impurity D, whichis reasonable in process design, strong in operability,