1630954-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1630954-67-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,0,9,5 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1630954-67:
(9*1)+(8*6)+(7*3)+(6*0)+(5*9)+(4*5)+(3*4)+(2*6)+(1*7)=174
174 % 10 = 4
So 1630954-67-4 is a valid CAS Registry Number.
1630954-67-4Relevant articles and documents
The synthesis of dipyrazolylmethanes, x-ray structure analysis
Ma, Yuan,Wang, Jinxia,Ma, Hengchang
, p. 1645 - 1655 (2014/07/08)
A small dipyrazoylmethane compounds library was established via the reaction of 5-alkyl- and 5-aryl-2-aryl-3H-pyrazol-3-ones with DMSO in the presence of NaOAc 3H2O as base using LiBr H2O as additive at 100 oC.
