137811-42-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137811-42-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,1 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 137811-42:
(8*1)+(7*3)+(6*7)+(5*8)+(4*1)+(3*1)+(2*4)+(1*2)=128
128 % 10 = 8
So 137811-42-8 is a valid CAS Registry Number.
InChI:InChI=1/C59H79N17O11/c60-34-49(79)69-43(32-38-22-24-39(77)25-23-38)52(82)73-45(30-36-15-6-2-7-16-36)54(84)75-46(31-37-17-8-3-9-18-37)55(85)74-44(29-35-13-4-1-5-14-35)53(83)71-41(20-11-27-68-59(65)66)57(87)76-28-12-21-47(76)56(86)70-40(19-10-26-67-58(63)64)51(81)72-42(50(62)80)33-48(61)78/h1-9,13-18,22-25,40-47,77H,10-12,19-21,26-34,60H2,(H2,61,78)(H2,62,80)(H,69,79)(H,70,86)(H,71,83)(H,72,81)(H,73,82)(H,74,85)(H,75,84)(H4,63,64,67)(H4,65,66,68)/t40-,41-,42-,43-,44-,45-,46-,47-/m0/s1