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66944-58-9

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66944-58-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66944-58-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,9,4 and 4 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 66944-58:
(7*6)+(6*6)+(5*9)+(4*4)+(3*4)+(2*5)+(1*8)=169
169 % 10 = 9
So 66944-58-9 is a valid CAS Registry Number.
InChI:InChI=1/C16H13NO7S.C7H17NO5/c18-13-2-1-9(6-14(13)19)5-12-11-8-15(20)16(24-25(21,22)23)7-10(11)3-4-17-12;1-8-2-4(10)6(12)7(13)5(11)3-9/h1-4,6-8,18-20H,5H2,(H,21,22,23);4-13H,2-3H2,1H3/t;4-,5+,6+,7+/m.0/s1

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