342900-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 342900-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,2,9,0 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 342900-89:
(8*3)+(7*4)+(6*2)+(5*9)+(4*0)+(3*0)+(2*8)+(1*9)=134
134 % 10 = 4
So 342900-89-4 is a valid CAS Registry Number.
342900-89-4Relevant articles and documents
Asymmetric synthesis of the C(33)-C(37) fragment of amphotericin B
Tholander, Joakim,Carreira, Erick M.
, p. 613 - 622 (2001)
We have devised an expeditious, efficient, asymmetric synthesis of the C(33)-C(37) fragment of amphotericin B that proceeds in 14 steps and 16% overall yield from tiglic aldehyde ((E)-2-methylbut-2-enal) with complete stereocontrol. The route described he