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142694-57-3

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142694-57-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142694-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,6,9 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 142694-57:
(8*1)+(7*4)+(6*2)+(5*6)+(4*9)+(3*4)+(2*5)+(1*7)=143
143 % 10 = 3
So 142694-57-3 is a valid CAS Registry Number.
InChI:InChI=1/C63H85N13O20S2/c1-36(77)54-62(94)71-48(61(93)73-55(37(2)78)63(95)96)35-98-97-34-47(70-57(89)44(25-38-13-5-3-6-14-38)66-49(79)29-75(31-51(82)83)23-21-74(30-50(80)81)22-24-76(32-52(84)85)33-53(86)87)60(92)68-45(26-39-15-7-4-8-16-39)58(90)69-46(27-40-28-65-42-18-10-9-17-41(40)42)59(91)67-43(56(88)72-54)19-11-12-20-64/h3-10,13-18,28,36-37,43-48,54-55,65,77-78H,11-12,19-27,29-35,64H2,1-2H3,(H,66,79)(H,67,91)(H,68,92)(H,69,90)(H,70,89)(H,71,94)(H,72,88)(H,73,93)(H,80,81)(H,82,83)(H,84,85)(H,86,87)(H,95,96)

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