125659-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 125659-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,6,5 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 125659-91:
(8*1)+(7*2)+(6*5)+(5*6)+(4*5)+(3*9)+(2*9)+(1*1)=148
148 % 10 = 8
So 125659-91-8 is a valid CAS Registry Number.
125659-91-8Relevant articles and documents
1,4-Benzoquinones: Improved Methods of Synthesis and New Diaziridinyl Analogues
Dzielendziak, Adam,Butler, John
, p. 643 - 645 (2007/10/02)
Two methods are given for the synthesis of 2,5-dichloro-3,6-bis(alkoxycarbonylamino)-1,4-benzoquinones 4, which can be subsequently reacted with aziridine to produce novel 2,5-di(1-aziridinyl)-3,6-bis(alkoxycarbonylamino)-1,4-benzoquinones 5.The first met