81305-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81305-99-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,0 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81305-99:
(7*8)+(6*1)+(5*3)+(4*0)+(3*5)+(2*9)+(1*9)=119
119 % 10 = 9
So 81305-99-9 is a valid CAS Registry Number.
81305-99-9Relevant articles and documents
SYNTHESE DES RACEMATS EINES SECO-FUROEREMOPHILANS AUS EURYOPS HEBECARPUS
Bohlmann, Ferdinand,Fritz, Gerhard
, p. 4803 - 4806 (1981)
Starting with 6-amino-5-cyano-3-methyl benzofuran the structure of a seco-furoeremophilane has been established by synthesis.
