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344238-10-4

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344238-10-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 344238-10-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,4,2,3 and 8 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 344238-10:
(8*3)+(7*4)+(6*4)+(5*2)+(4*3)+(3*8)+(2*1)+(1*0)=124
124 % 10 = 4
So 344238-10-4 is a valid CAS Registry Number.

344238-10-4Relevant articles and documents

Synthese von zweifach ueberbrueckten 2,5-Diamino-1,4-dialkyl-3,6-dimethoxybenzol-Derivaten als -Praerotaxane

Schill, Gottfried,Ortlieb, Heribert

, p. 877 - 890 (2007/10/02)

Starting with 2,5-dimethoxyterephthaldialdehyde (1) and the triphenylphosphorane 2 the double bridged 2,5-diaminohydroquinone derivative 20 is synthesised in a multistep reaction sequence.Via the dibromide 21 as intermediate, the -prerotaxane 22 is obt

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