286841-49-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 286841-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,6,8,4 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 286841-49:
(8*2)+(7*8)+(6*6)+(5*8)+(4*4)+(3*1)+(2*4)+(1*9)=184
184 % 10 = 4
So 286841-49-4 is a valid CAS Registry Number.
286841-49-4Relevant articles and documents
Synthesis of 4-carbethoxy-4H-3-substituted-isoxazol-5-ones and their conversion into novel spiroheterocycles
Chande,Bhat
, p. 68 - 70 (2007/10/03)
Interaction of diethyl α-acyl/aroylmalonates 1 with hydroxylamine hydrochloride 2 afford 4-carbethoxy-4H-3-substituted-isoxazol-5-ones 3 and 3-substituted-4H-5-oxo-isoxazol-4-carboxylic acids 4. Bromination of 3 affords 4-bromo derivatives 5, which with t
