1019857-05-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1019857-05-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,9,8,5 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1019857-05:
(9*1)+(8*0)+(7*1)+(6*9)+(5*8)+(4*5)+(3*7)+(2*0)+(1*5)=156
156 % 10 = 6
So 1019857-05-6 is a valid CAS Registry Number.
1019857-05-6Relevant articles and documents
Synthesis and characterization of novel azo-morphine derivatives for possible use in abused drugs analysis
Alnajjar, Ahmed O.,El-Zaria, Mohamed E.
, p. 357 - 363 (2008/09/19)
A new simple and fast spectroscopic method was presented as a new marker for heroin use. Novel azo-morphine derivatives with spectroscopic absorption peaks ranging from 330-470 nm, were synthesized by the coupling of morphine (M) and 6-acetyl morphine (6-
