Cas 223387-25-5,2-(1-phenyl-1-cyclohexyloxy)tetrahydropyran

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Check Digit Verification of cas no

The CAS Registry Mumber 223387-25-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,3,8 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 223387-25:
(8*2)+(7*2)+(6*3)+(5*3)+(4*8)+(3*7)+(2*2)+(1*5)=125
125 % 10 = 5
So 223387-25-5 is a valid CAS Registry Number.

223387-25-5Upstream product

223387-25-5Downstream Products

1589-60-2 1-phenylcyclohexanol

223387-25-5Relevant articles and documents

Acetonyltriphenylphosphonium bromide in organic synthesis: An extremely efficient catalyst for the protection and deprotection of alcohols as alkyl vinyl ethers

Hon, Yung-Son,Lee, Chia-Fu

, p. 2389 - 2392 (1999)

Acetonyltriphenylphosphonium bromide (ATPB) was an extremely effective catalyst in the preparation of THP, THF, and EE ethers as well as cleavage of THP, THF, and EE ethers to the corresponding alcohols. It could be applied to 1°, 2°and 3°alcohols and phenol.

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223387-25-5