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98775-15-6

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98775-15-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98775-15-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,7,7 and 5 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 98775-15:
(7*9)+(6*8)+(5*7)+(4*7)+(3*5)+(2*1)+(1*5)=196
196 % 10 = 6
So 98775-15-6 is a valid CAS Registry Number.

98775-15-6Upstream product

98775-15-6Downstream Products

98775-15-6Relevant articles and documents

Dynamics of Internal Rotation in 2-(Cycloalkenyl)ethyl Radicals

Walton, John C.

, p. 1809 - 1814 (2007/10/02)

2-(Cycloalkenyl)ethyl radicals having C4 to C7 rings were observed by e.s.r. spectroscopy.The barriers to rotation about the -Cβ bonds were determined from the temperature variation of the β-hydrogen hyperfine splitting and shown to decrease with increasing ring size.In all cases, the preferred conformation about the Cβ-Cγ bond was found to be the one in which the -Cβ bond makes an angle of 90 deg with the plane of the ring.Exchange broadening due to restricted rotation about the Cβ-Cγ bond was observed and the rotation barriers were determined for the radicals with C6 and C7 rings.The radicals were studied using the semi-empirical MINDO/3 and MNDO methods and the corresponding hydrocarbons were investigated by the MM2 force field approach.The variation in the rotational barrier heights were attributed to steric effects.

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