135677-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135677-04-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,6,7 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 135677-04:
(8*1)+(7*3)+(6*5)+(5*6)+(4*7)+(3*7)+(2*0)+(1*4)=142
142 % 10 = 2
So 135677-04-2 is a valid CAS Registry Number.
135677-04-2Relevant articles and documents
Substituent Effect on "Ring-Chain" Tautomerism of 1,2,3,4-Tetrahydro-s-tetrazines
El-Abadelah, M. M.,Hussein, A. Q.,Abushamleh, A. S.
, p. 61 - 65 (2007/10/02)
Methylhydrazones (III) of aromatic aldehydes and ketones react with nitrile imines (II) to give 1,2,3,4-tetrahydro-s-tetrazines IV (1-9) which exhibit "ring-chain" tautomerism in solution.The extent of this tautomerism is dependent both on steric and elec
