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25233-82-3

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25233-82-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25233-82-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,2,3 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 25233-82:
(7*2)+(6*5)+(5*2)+(4*3)+(3*3)+(2*8)+(1*2)=93
93 % 10 = 3
So 25233-82-3 is a valid CAS Registry Number.

25233-82-3Relevant articles and documents

Successively recycle waste as catalyst: A one-pot wittig/1,4-reduction/paal-knorr sequence for modular synthesis of substituted furans

Chen, Long,Du, Yi,Zeng, Xing-Ping,Shi, Tao-Da,Zhou, Feng,Zhou, Jian

, p. 1557 - 1560 (2015/03/30)

A one-pot tandem Wittig/conjugate reduction/Paal-Knorr reaction is reported for the synthesis of di- or trisubstituted furans. This novel sequence first demonstrates the possibility of successively recycling waste from upstream steps to catalyze downstream reactions.

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