141777-20-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141777-20-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,7,7 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 141777-20:
(8*1)+(7*4)+(6*1)+(5*7)+(4*7)+(3*7)+(2*2)+(1*0)=130
130 % 10 = 0
So 141777-20-0 is a valid CAS Registry Number.
InChI:InChI=1/C26H25N7O9S2/c1-26(2,24(40)41)42-31-17(13-9-44-25(27)29-13)20(36)30-18-21(37)33-19(23(38)39)11(8-43-22(18)33)4-3-5-32-10-28-12-6-15(34)16(35)7-14(12)32/h3-4,6-7,9-10,18,22,34-35H,5,8H2,1-2H3,(H2,27,29)(H,30,36)(H,38,39)(H,40,41)/t18?,22-/m1/s1
141777-20-0Relevant articles and documents
Antibiotic C-3 catechol-substituted cephalosporin compounds, compositions and method of use thereof
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, (2008/06/13)
This invention relates to novel cephalosporin derivatives of the formula STR1 wherein R1 is hydrogen, a straight, branched, or cyclic lower alkyl group having up to six carbon atoms or a radical of the formula STR2 in which R3 and R