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129992-48-9

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129992-48-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129992-48-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,9 and 2 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 129992-48:
(8*1)+(7*2)+(6*9)+(5*9)+(4*9)+(3*2)+(2*4)+(1*8)=179
179 % 10 = 9
So 129992-48-9 is a valid CAS Registry Number.

129992-48-9Downstream Products

129992-48-9Relevant articles and documents

Synthesis and Mesogenic Properties of N-n-alkyl-N'-(4-n-Pentyloxyphenyl)-Piperazines

Zuniga, H.,Bartulin, J.,Ramirez, A.,Muller, H.,Taylor, T. R.

, p. 131 - 140 (2007/10/02)

The N-n-alkyl-N'-(4-n-pentyloxyphenyl)-piperazines (4) exhibit ordered smectic phases at temperatures below 100 deg C.For 3, 4, 5 and 6 carbons in the alkyl chain, two smectic phases are present and for 7, 8 and 9 carbons only one smectic phase is present.The ΔH values for 4, 5, 6 and 7 carbons are anomalous.From optical and X-ray data, the smectic phases are identified as probably smectic E and B phases.

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