21001-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21001-19-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,0 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21001-19:
(7*2)+(6*1)+(5*0)+(4*0)+(3*1)+(2*1)+(1*9)=34
34 % 10 = 4
So 21001-19-4 is a valid CAS Registry Number.
21001-19-4Relevant articles and documents
Synthesis and cytotoxicity of derivatives of di(3-indolyl) selenide
Abele,Popelis,Shestakova,Domracheva,Arsenyan,Lukevics
, p. 742 - 746 (2007/10/03)
A method has been developed for the synthesis of di(3-indolyl) selenides. From indole and SeO2. N-Alkyl derivatives of di(3-indolyl) selenide have been obtained in the two-phase system alkyl halide-solid K 2CO3 (or KOH)-18
