137841-38-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137841-38-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,4 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137841-38:
(8*1)+(7*3)+(6*7)+(5*8)+(4*4)+(3*1)+(2*3)+(1*8)=144
144 % 10 = 4
So 137841-38-4 is a valid CAS Registry Number.
137841-38-4Relevant articles and documents
Synthesis of 2,6-di-tert-butylphenols linked to 1,3,4-oxadiazoles and 1,3,4-thiadiazoles
Kramer,Boschelli,Connor
, p. 1439 - 1443 (2007/10/02)
The preparation of a series of analogs of 2,6-di-tert-butylphenol linked to a 1,3,4-oxadiazole or 1,3,4-thiadiazole via an ethylene or methyleneoxy spacer is discussed.
