1755-58-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1755-58-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,5 and 5 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1755-58:
(6*1)+(5*7)+(4*5)+(3*5)+(2*5)+(1*8)=94
94 % 10 = 4
So 1755-58-4 is a valid CAS Registry Number.
InChI:InChI=1/C21H8Cl12O5S/c22-11-13(24)18(28)9-7(16(11,26)20(18,30)31)3-1-5(15(34)35)6(39(36,37)38)2-4(3)8-10(9)19(29)14(25)12(23)17(8,27)21(19,32)33/h1-2,7-10H,(H,34,35)(H,36,37,38)