Cas 143444-41-1,C20H24O4S

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Check Digit Verification of cas no

The CAS Registry Mumber 143444-41-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,4,4 and 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 143444-41:
(8*1)+(7*4)+(6*3)+(5*4)+(4*4)+(3*4)+(2*4)+(1*1)=111
111 % 10 = 1
So 143444-41-1 is a valid CAS Registry Number.

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143444-41-1Relevant academic research and scientific papers

Synthesis and acid-promoted ring opening of a novel cage spiro-oxetane

Marchand,Vidyasagar,Ren,Sherrod,Watson,Krawiec

, p. 3983 - 3986 (1992)

When heated with glacial HOAc and concentrated H2SO4 (catalytic amount), cage oxetane undergoes ring opening with concomitant skeletal rearrangement, thereby affording a mixture of bis(acetoxy)trishomocubanes, (ratio 4:1).

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