138589-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138589-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,8 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138589-77:
(8*1)+(7*3)+(6*8)+(5*5)+(4*8)+(3*9)+(2*7)+(1*7)=182
182 % 10 = 2
So 138589-77-2 is a valid CAS Registry Number.
138589-77-2Relevant articles and documents
A FACILE 3-ALKYL BUTENOLIDE ANNULATION SEQUENCE
Black, T. Howard,McDermott, Todd S.,Brown, Gary A.
, p. 6501 - 6502 (2007/10/02)
Spiro 3-alkyl 3-chloro oxetan-2-ones, derived from cycloalkanones, rearrange under the influence of Lewis acids to ring-fused alkyl butenolides.