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93690-46-1

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93690-46-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93690-46-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,6,9 and 0 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 93690-46:
(7*9)+(6*3)+(5*6)+(4*9)+(3*0)+(2*4)+(1*6)=161
161 % 10 = 1
So 93690-46-1 is a valid CAS Registry Number.

93690-46-1Downstream Products

93690-46-1Relevant articles and documents

Acid-Catalyzed Hydrolysis of Ketene Dithioacetals and Trithioorthocarboxylates. Effect of β-Methyl Substitution

Okuyama, Tadashi,Kawao, Shoji,Fueno, Takayuki

, p. 85 - 88 (2007/10/02)

Hydrolysis rates of β-methyl-substituted ketene dithioacetals were measured. β-Monomethyl and β,β-dimethyl substitutions reduced the reactivity of the parent acetal by factors of 26 and 6.7 x 105, respectively.Similar methyl substitutions of trithioorthoacetate, however, enhanced the hydrolysis reactivity by 3 and 23 times.The reversibility of protonation of ketene dithioacetal during hydrolysis was slightly increased by a β-methyl group, but dimethyl substitution seemed to inhibit reversibility by raising the potential barrier to protonation.

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