189317-18-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189317-18-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,3,1 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 189317-18:
(8*1)+(7*8)+(6*9)+(5*3)+(4*1)+(3*7)+(2*1)+(1*8)=168
168 % 10 = 8
So 189317-18-8 is a valid CAS Registry Number.
189317-18-8Relevant articles and documents
REVERSIBLE THERMAL RECORDING MEDIUM
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, (2008/06/13)
A thermosensitive reversible recording material having a thermosensitive recording layer formed on a substrate sheet and including a substantially colorless dye precursor and a color developing agent capable of reversibly color-developing and erasing the
