97033-05-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97033-05-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,0,3 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 97033-05:
(7*9)+(6*7)+(5*0)+(4*3)+(3*3)+(2*0)+(1*5)=131
131 % 10 = 1
So 97033-05-1 is a valid CAS Registry Number.
97033-05-1Relevant articles and documents
REACTION OF ACETOXYAZETIDINONES WITH TRIMETHYLSILYLACETYL THIOLESTERS: PREPARATION OF AZETIDINONE-THIOLESTER PRECURSORS TO CARBAPENEMS
Tajima, Yawara,Yoshida, Akira,Takeda, Noriko,Oida, Sadao
, p. 673 - 676 (2007/10/02)
Reaction of acetoxyazetidinones, 1 and 2, with trimethylsilylacetyl thiolesters 10 afforded azetidinone-thiolesters, 11 and 12, which are useful intermediates in the carbapenem synthesis.
