131573-12-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131573-12-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,5,7 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 131573-12:
(8*1)+(7*3)+(6*1)+(5*5)+(4*7)+(3*3)+(2*1)+(1*2)=101
101 % 10 = 1
So 131573-12-1 is a valid CAS Registry Number.
131573-12-1Relevant articles and documents
SYNTHETIC STUDIES OF MARINE ALKALOIDS HAPALINDOLES. Part 1. TOTAL SYNTHESIS OF (+/-)-HAPALINDOLES J and M
Muratake, Hideaki,Natsume, Mitsutaka
, p. 6331 - 6342 (2007/10/02)
The first concise synthesis of marine indole alkaloids (+/-) hapalindoles J (4) and M (5) was achieved in seven or six steps starting from a readily available compound 6 using important key reactions, 6 -> 7 -> 8 and 35 -> 41 or 5.