Cas 75460-01-4,spiro<oxindole-3,4'-(6'-amino-5'-cyano-2',3'-dihydro-2'-phenyl-4'H-pyran)>

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Check Digit Verification of cas no

The CAS Registry Mumber 75460-01-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,6 and 0 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 75460-01:
(7*7)+(6*5)+(5*4)+(4*6)+(3*0)+(2*0)+(1*1)=124
124 % 10 = 4
So 75460-01-4 is a valid CAS Registry Number.

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75460-01-4Relevant academic research and scientific papers

Spiro Heterocyclic Compounds. IV. Synthesis of Spiro and Spiro Compounds

Higashiyama, Kimio,Otamasu, Hirotaka

, p. 1540 - 1545 (2007/10/02)

The Michael reaction of 3-(carboethoxy-cyano)methyleneoxindole (Ia) or 3-dicyanomethyleneoxindole (Ib) with active methyl groups, e.g., acetophenone and acetone, afforded, the corresponding normal Michael adducts (IIa-c).The reduction of IIa with NaBH4 ga

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