608142-28-5 Usage
Uses
(R)-1-(3-Ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethylamine N-Acetyl-D-leucine Salt is an intermediate in the synthesis of (R)-Apremilast (A729705), an enantiomer of Apremilast (A729700), an oral phosphodiesterase 4 inhibitor is used in the treatment of psoriatic arthritis.
Check Digit Verification of cas no
The CAS Registry Mumber 608142-28-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,0,8,1,4 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 608142-28:
(8*6)+(7*0)+(6*8)+(5*1)+(4*4)+(3*2)+(2*2)+(1*8)=135
135 % 10 = 5
So 608142-28-5 is a valid CAS Registry Number.
608142-28-5Relevant articles and documents
THIOPHENE DERIVATIVES
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Page/Page column 25, (2012/04/17)
Disclosed is a compound of formula (1), wherein R1, R2, R3, R4, R5, R6, R7 and R8 are as defined in the present application.