103730-44-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103730-44-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,7,3 and 0 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 103730-44:
(8*1)+(7*0)+(6*3)+(5*7)+(4*3)+(3*0)+(2*4)+(1*4)=85
85 % 10 = 5
So 103730-44-5 is a valid CAS Registry Number.
InChI:InChI=1/C16H23N3O4S/c1-7-12-11(8(2)20)15(21)19(12)13(16(22)23)14(7)24-10-4-5-18(6-10)9(3)17/h7-8,10-12,17,20H,4-6H2,1-3H3,(H,22,23)/b17-9+/t7-,8+,10?,11-,12+/m0/s1
103730-44-5Relevant articles and documents
Synthetic study of 1-substituted carbapenem antibiotics
Shibata,Iino,Tanaka,et al.
, p. 4739 - 4742 (2007/10/02)
Total synthesis of 1-substituted carbapenems is described. The key step is the reaction of acetoxyazetidinone with ketene silyl acetal.