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16639-11-5

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16639-11-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16639-11-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,3 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 16639-11:
(7*1)+(6*6)+(5*6)+(4*3)+(3*9)+(2*1)+(1*1)=115
115 % 10 = 5
So 16639-11-5 is a valid CAS Registry Number.
InChI:InChI=1/C49H75N15O15S2/c1-5-25(4)41-48(78)58-28(12-13-35(51)66)43(73)60-31(17-36(52)67)44(74)62-33(49(79)64-14-6-7-34(64)47(77)61-29(15-24(2)3)42(72)56-19-37(53)68)23-81-80-22-32(57-40(71)21-55-39(70)20-54-38(69)18-50)46(76)59-30(45(75)63-41)16-26-8-10-27(65)11-9-26/h8-11,24-25,28-34,41,65H,5-7,12-23,50H2,1-4H3,(H2,51,66)(H2,52,67)(H2,53,68)(H,54,69)(H,55,70)(H,56,72)(H,57,71)(H,58,78)(H,59,76)(H,60,73)(H,61,77)(H,62,74)(H,63,75)/t25-,28-,29-,30-,31-,32-,33-,34-,41?/m0/s1

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