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269409-30-5

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269409-30-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 269409-30-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,9,4,0 and 9 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 269409-30:
(8*2)+(7*6)+(6*9)+(5*4)+(4*0)+(3*9)+(2*3)+(1*0)=165
165 % 10 = 5
So 269409-30-5 is a valid CAS Registry Number.

269409-30-5Downstream Products

269409-30-5Relevant articles and documents

Synthesis of two 1,3-2,4-calix[4]bis-crown ethers containing two 1,2- phenylene and one pyridine or anisole units in each crown ether moiety

Xue, Guo-Ping,Bradshaw, Jerald S.,Su, Ning,Krakowiak, Krzysztof E.,Savage, Paul B.,Izatt, Reed M.

, p. 1 - 3 (2000)

Syntheses of 1,3-2,4-calix[4]bis-crown ethers (1 and 2) fixed in the 1,3-alternate conformation by 1,3- and 2,4-bridges made of two modified polyether chains each containing two 1,2-phenylene residues and one pyridine or anisyl unit are reported. The stru

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