138421-42-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138421-42-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,2 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138421-42:
(8*1)+(7*3)+(6*8)+(5*4)+(4*2)+(3*1)+(2*4)+(1*2)=118
118 % 10 = 8
So 138421-42-8 is a valid CAS Registry Number.
138421-42-8Relevant articles and documents
Photochemical and Thermal Decomposition of Bis(3-chloro-2-methylphenyl)diazomethane
Lai, Yee-Hing
, p. 1151 - 1155 (2007/10/02)
The reactions of diarylcarbene (2c) generated from the photolytic and thermal decomposition of diaryldiazomethane (1c) were investigated.The effect of steric hindrance in (2c) was insufficient to stabilize the carbene under the photolytic conditions to al
