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91948-76-4

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91948-76-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91948-76-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,4 and 8 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 91948-76:
(7*9)+(6*1)+(5*9)+(4*4)+(3*8)+(2*7)+(1*6)=174
174 % 10 = 4
So 91948-76-4 is a valid CAS Registry Number.

91948-76-4Relevant articles and documents

Heterolysis of o-(α-Hydroxyalkyl)-4-cyanophenyl Nitrite: Simultaneous Polar and Steric Effects

Jagannadham, V.,Steenken, S.

, p. 907 - 908 (2007/10/02)

The heterolysis rates of the adducts D>, produced pulse-radiolytically in aqueous solution from 4-nitrobenzonitrile (4-NBN) and substituted (RD) α-hydroxyalkyl radicals have been measured spectrophotometrically following the build-up kinetics of radical anion, CNC6H4NO2(.-) (λmax 330 nm).Taft linear polar energy relationship is applicable for only non-branched RD's (r = 0.988) while branched RD's deviate much from linearity.The reason for this is discussed in terms of Pavelich-Taft four-parameter equation assuming that both polar and steric interactions are operative on rates of heterolysis.

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