154533-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 154533-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,5,3 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 154533-77:
(8*1)+(7*5)+(6*4)+(5*5)+(4*3)+(3*3)+(2*7)+(1*7)=134
134 % 10 = 4
So 154533-77-4 is a valid CAS Registry Number.
154533-77-4Relevant articles and documents
Synthesis of unsaturated [1,2]oxazines by using sigmatropic rearrangements and the ring-closing metathesis reaction
Le Flohic, Alexandre,Meyer, Christophe,Cossy, Janine,Desmurs, Jean-Roger
, p. 8577 - 8580 (2007/10/03)
Various substituted unsaturated [1,2]oxazines have been synthesized by using a [2,3]- or a [3,3]-sigmatropic rearrangement and a ring-closing metathesis reaction as key steps.
