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90355-19-4

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90355-19-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90355-19-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,3,5 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 90355-19:
(7*9)+(6*0)+(5*3)+(4*5)+(3*5)+(2*1)+(1*9)=124
124 % 10 = 4
So 90355-19-4 is a valid CAS Registry Number.

90355-19-4Relevant articles and documents

2,6-Piperidinediones, I: Synthesis of the Racemates and Enantiomers of 3,3-Disubstituted 2,6-Piperidinediones

Knabe, Joachim,Reischig, Dirk

, p. 353 - 362 (1984)

The synthesis of the racemates and the enantiomers of the 3,3-disubstituted 2,6-piperidinediones 3a-3g is performed in three ways, depending on the C-3 substituents.The 3-cyclohexylpiperidinedione 3h is obtained as racemic and optically active compound by

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