186691-94-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186691-94-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,6,9 and 1 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 186691-94:
(8*1)+(7*8)+(6*6)+(5*6)+(4*9)+(3*1)+(2*9)+(1*4)=191
191 % 10 = 1
So 186691-94-1 is a valid CAS Registry Number.
186691-94-1Relevant articles and documents
Synthesis of Novel Near-Infrared Cyanine Dyes for Metal Ion Determination
Gorecki, Tadeusz,Patonay, Gabor,Strekowski, Lucjan,Chin, Robert,Salazar, Noe
, p. 1871 - 1876 (2007/10/03)
Four heptamethine cyanine dyes 10, 19-21 containing an ortho-hydroxy-carboxy functionality for metal ion complexation and absorbing at λmax (methanol) 761 ±1 nm have been synthesized.