1636889-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1636889-27-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,6,8,8 and 9 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1636889-27:
(9*1)+(8*6)+(7*3)+(6*6)+(5*8)+(4*8)+(3*9)+(2*2)+(1*7)=224
224 % 10 = 4
So 1636889-27-4 is a valid CAS Registry Number.
1636889-27-4Relevant articles and documents
1-(Phenylamino)pseudo-mauveine: A new water soluble phenazine dye
Plater, M. John,Jackson, Toby
, p. 437 - 442 (2014)
1-(Phenylamino)pseudo-mauveine was prepared by the oxidation of 1,3,5-tris(phenylamino)benzene and p-phenylenediamine with potassium dichromate. The absorption maximum of 535 nm is shifted hypsochromically by about 20 nm compared to that for pseudo-mauvei