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87002-27-5

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87002-27-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87002-27-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,0,0 and 2 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87002-27:
(7*8)+(6*7)+(5*0)+(4*0)+(3*2)+(2*2)+(1*7)=115
115 % 10 = 5
So 87002-27-5 is a valid CAS Registry Number.

87002-27-5Relevant articles and documents

Acetylenes

-

, (2008/06/13)

Compounds of the formula STR1 wherein ring B stands for 1,4-phenylene or a trans-1,4-disubstituted cyclohexane ring and A stands for a group with 1 to 3 six-membered rings, which together with ring B represents a central group of formulae II-XIII; R1 signifies a straight-chain alkyl group containing 1 to 9 carbon atoms or when R1 is attached to a benzene, monofluorinated benzene or pyrimidine, ring R1 also signifies a straight-chain alkoxy group with 1 to 9 carbon atoms; and R2 signifies hydrogen, cyano or a straight-chain alkyl group containing 1 to 7 carbon atoms, their manufacture, liquid crystalline mixtures which contain said compounds and their use for electro-optical purposes are described. The compounds of formula I are especially valuable as components in liquid crystal mixtures and for the most part themselves have liquid crystalline properties.

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