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138200-69-8

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138200-69-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138200-69-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,2,0 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138200-69:
(8*1)+(7*3)+(6*8)+(5*2)+(4*0)+(3*0)+(2*6)+(1*9)=108
108 % 10 = 8
So 138200-69-8 is a valid CAS Registry Number.

138200-69-8Downstream Products

138200-69-8Relevant articles and documents

An efficient conversion of nitroaromatics and aromatic amines to tertiary amines in one-pot way

Jung, Yeon Joo,Bae, Jong Woo,Park, Eun Soo,Chang, Yu Mi,Yoon, Cheol Min

, p. 10331 - 10338 (2003)

Reductive alkylation and reductive methylation of aromatic primary amines with carbonyls and 37% formaldehyde using decaborane in one-pot way gave the corresponding tertiary amines in high yields. The reaction condition was extended for the reduction of n

N-Dealkylation-N-nitrosation of Tertiary Aromatic Amines by n-Butyl Nitrite

Verardo, Giancarlo,Giumanini, Angelo G.,Strazzolini, Paolo

, p. 7845 - 7852 (2007/10/02)

N,N-Dialkyl aromatic amines with a variety of ring substituents are N-dealkylated and N-nitrosated efficiently by n-butyl nitrite/ammonium chloride/water at reflux temperature.Ring nitrosation was never observed, but minor amounts of m- and p-nitro amines and/or nitrosamines were formed in some cases.Ring nitration is rather a reaction of the initial substrate than a process occurring on formed nitrosamines.The leaving propensities of the initial N-substituents to yield nitrosamines were in the order benzyl >> methyl >> alkyl.Key Words: Nitrosamines; N-Dealkylation; N-Nitrosation; C-Nitration; Alkyl nitrite.

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