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25871-56-1

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25871-56-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25871-56-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,8,7 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 25871-56:
(7*2)+(6*5)+(5*8)+(4*7)+(3*1)+(2*5)+(1*6)=131
131 % 10 = 1
So 25871-56-1 is a valid CAS Registry Number.

25871-56-1Relevant articles and documents

AN EXPEDITIOUS ROUTE TO MONOPROTECTED α-KETO ALDEHYDES WITH CONTROL OF REGICHEMISTRY

Babler, James H.

, p. 355 - 358 (2007/10/02)

Treatment of representative orthoesters (2) with pyruvonitrile (3) afforded the corresponding α,α-diethoxynitriles (4) in 65-85percent yields.Subsequent reduction of the latter using lithium aluminium hydride, followed by careful hydrolysis of the aldimine intermediates, led to the procurement of α,α-doalkoxy aldehydes (5) in 80-90percent yield.

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