166669-98-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166669-98-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,6,6 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 166669-98:
(8*1)+(7*6)+(6*6)+(5*6)+(4*6)+(3*9)+(2*9)+(1*8)=193
193 % 10 = 3
So 166669-98-3 is a valid CAS Registry Number.
166669-98-3Relevant articles and documents
1,2-Diethynylferrocene
Bunz, Uwe H. F.
, p. C8 - C11 (1995)
Synthesis of 1,2-diethynylferrocene (2), 1,2-divinylferrocene (3) and 1-ethynyl-2-vinylferrocene (5) starting from ferrocene-1,2-dicarboxaldehyde (1) is reported.Keywords: Iron, Alkyne; Ferrocene; Diyne
