90652-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90652-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,6,5 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90652-20:
(7*9)+(6*0)+(5*6)+(4*5)+(3*2)+(2*2)+(1*0)=123
123 % 10 = 3
So 90652-20-3 is a valid CAS Registry Number.
90652-20-3Relevant academic research and scientific papers
Azetidinone derivatives, a process for their preparation and their use as intermediates in the preparation of carbapenem antibiotics
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, (2008/06/13)
Compounds of formula (I): STR1 (wherein R1 represents hydrogen or a hydroxy-protecting group, R2 and R3 represent hydrogen, alkyl or aryl; R4 represents optionally substituted alkyl, alicyclic heterocyclic, aryl
