83631-17-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83631-17-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,3 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 83631-17:
(7*8)+(6*3)+(5*6)+(4*3)+(3*1)+(2*1)+(1*7)=128
128 % 10 = 8
So 83631-17-8 is a valid CAS Registry Number.
83631-17-8Relevant articles and documents
ASYMMETRIC AZA-CLAISEN REARRANGEMENT: SYNTHESIS OF (+)-DIHYDROPALLESCENSIN-2
Kurth, Mark J.,Soares, Christopher J.
, p. 1031 - 1034 (2007/10/02)
Synthetic confirmation of the C(1')-(S)-configuration of (+)-dihydropallescensin-2 (1) is reported, the key reaction being a chiron-mediated asymmetric aza-Claisen rearrangement (67).
