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502904-16-7

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502904-16-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 502904-16-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,2,9,0 and 4 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 502904-16:
(8*5)+(7*0)+(6*2)+(5*9)+(4*0)+(3*4)+(2*1)+(1*6)=117
117 % 10 = 7
So 502904-16-7 is a valid CAS Registry Number.

502904-16-7Relevant articles and documents

A giant conjugated molecular ring

Mayor, Marcel,Didschies, Claudia

, p. 3176 - 3179 (2003)

Ever increasing circles? The giant cycle 1 has a diameter of 12 nm making it the largest, shape persistent and monodisperse cyclic molecular structure designed and synthesized to date. A modular approach consisting of a series of subsequent dimerization s

Molecular stirrers in action

Chen, Jiawen,Kistemaker, Jos C. M.,Robertus, Jort,Feringa, Ben L.

, p. 14924 - 14932 (2014)

A series of first-generation light-driven molecular motors with rigid substituents of varying length was synthesized to act as "molecular stirrers". Their rotary motion was studied by 1H NMR and UV - vis absorption spectroscopy in a variety of

Synthesis, characterization, and physical properties of monodisperse oligo(p-phenyleneethynylene)s

Zhou, Chuan-Zhen,Liu, Tianxi,Xu, Jing-Mei,Chen, Zhi-Kuan

, p. 1457 - 1464 (2007/10/03)

A new stepwise synthesis method for the preparation of precisely defined oligo(p-phenyleneethynylene)s (OPEs) is described. High-purity monomer, trimer, pentamer, heptamer, and nonamer of OPEs with dihexyloxy side groups and trimethylsilyl (TMS) or thioac

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