133177-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133177-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,7 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 133177-74:
(8*1)+(7*3)+(6*3)+(5*1)+(4*7)+(3*7)+(2*7)+(1*4)=119
119 % 10 = 9
So 133177-74-9 is a valid CAS Registry Number.
133177-74-9Relevant articles and documents
4-O-Methylhiascic Acid and 5-O-Acetyl-4-O-methylhiascic Acid, Two New Lichen Tridepsides
Elix, John A.,Yu, Jin,Toensberg, Tor
, p. 157 - 163 (2007/10/02)
A new metabolite has been detected in the lichen Parmelinopsis schindleri and its chromatographic behaviour shown to be identical to the synthetic tridepside 4-O-methylhiascic acid (6).The isolation, characterization and total synthesis of 5-O-acetyl-4-O-