290313-69-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 290313-69-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,0,3,1 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 290313-69:
(8*2)+(7*9)+(6*0)+(5*3)+(4*1)+(3*3)+(2*6)+(1*9)=128
128 % 10 = 8
So 290313-69-8 is a valid CAS Registry Number.
290313-69-8Relevant articles and documents
Further synthetic attempts towards calicene
Al-Dulayymi, Ahmad,Li, Xiaoming,Neuenschwander, Markus
, p. 1633 - 1644 (2007/10/03)
First synthetic attempts towards the so-far-unknown calicene (= 5- (cycloprop-2-en-1-ylidene)cyclopenta-1,3-diene) precursors 3-(cyclopenta-2,4- dien-1-ylidene)tricyclo[3.2.2.22.4]nona-6,8-diene (4; Scheme 1), 1,4- di(cyclopenta-2,4-dien-1-ylid
