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1171019-85-4

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1171019-85-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1171019-85-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,1,0,1 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1171019-85:
(9*1)+(8*1)+(7*7)+(6*1)+(5*0)+(4*1)+(3*9)+(2*8)+(1*5)=124
124 % 10 = 4
So 1171019-85-4 is a valid CAS Registry Number.

1171019-85-4Upstream product

1171019-85-4Relevant articles and documents

One-Pot Preparation of (E)-α,β-Unsaturated Aldehydes by a Julia-Kocienski Reaction of 2,2-Dimethoxyethyl PT Sulfone Followed by Acid Hydrolysis

Ando, Kaori,Watanabe, Haruka,Zhu, Xiaoxian

, p. 6969 - 6973 (2021)

(E)-α,β-Unsaturated aldehydes were synthesized by the Julia-Kocienski reaction of 2,2-dimethoxyethyl 1-phenyl-1H-tetrazol-5-yl (PT) sulfone 3 with various aldehydes, followed by acid hydrolysis. The reaction could be carried out in one pot, and various (E)-α,β-unsaturated aldehydes were obtained in a short time and with high yields.

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