126893-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126893-21-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,8,9 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 126893-21:
(8*1)+(7*2)+(6*6)+(5*8)+(4*9)+(3*3)+(2*2)+(1*1)=148
148 % 10 = 8
So 126893-21-8 is a valid CAS Registry Number.
126893-21-8Relevant articles and documents
Alkaloids from Annonaceae 93. First synthesis of a meta-disubstituted aporphine
Roblot, F.,Hocquemiller, R.,Cave, A.
, p. 258 - 267 (2007/10/02)
The synthesis of a new aporphinoid alkaloid, substituted on the 9 and 11 positions, is reported.An unexpected reactivity has been observed for several intermediates.It has been attributed to the position of the methoxy groups with regard to the nitro group.
