193071-52-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 193071-52-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,0,7 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 193071-52:
(8*1)+(7*9)+(6*3)+(5*0)+(4*7)+(3*1)+(2*5)+(1*2)=132
132 % 10 = 2
So 193071-52-2 is a valid CAS Registry Number.
193071-52-2Relevant articles and documents
Total synthesis of (-)-epothilone A
Schinzer, Dieter,Bauer, Armin,Boehm, Oliver M.,Limberg, Anja,Cordes, Martin
, p. 2483 - 2491 (1999)
The total synthesis of (-)-epothilone A by a convergent route is reported. The synthesis of the required key intermediates has been improved with respect to stereoselectivity and availability. The access to ethyl ketone 2 has been significantly improved b