156630-35-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156630-35-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,6,3 and 0 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 156630-35:
(8*1)+(7*5)+(6*6)+(5*6)+(4*3)+(3*0)+(2*3)+(1*5)=132
132 % 10 = 2
So 156630-35-2 is a valid CAS Registry Number.
156630-35-2Relevant articles and documents
Synthesis and reactivity of some 4-bromo-2H-chromenes and 2H-thiochromenes
Gabbutt,Hartley,Hepworth,Heron,Kanjia,Rahman
, p. 2507 - 2522 (2007/10/02)
A facile synthesis of 4-bromo- 2H-chromenes and 2H-thiochromenes and of 1-bromo-3,4-dihydronaphthalene from the corresponding ketones and PBr3 is described. In some instances, significant quantities of the phosphonic acids (3) are isolated. Con
