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2-methyl-3-oxa-1-aza-spiro[4.5]dec-1-en-4-one is a complex organic compound with a unique molecular structure. It is a spiro compound, which means it contains two rings that share a common atom. In this case, the compound features a 3-oxa (oxygen-containing) and a 1-aza (nitrogen-containing) ring, which are fused together to form the spiro structure. The molecule also has a 2-methyl group attached to the carbon atom, and a 4-en-1-one functional group, indicating the presence of a carbonyl group and a double bond. 2-methyl-3-oxa-1-aza-spiro[4.5]dec-1-en-4-one is of interest in the field of organic chemistry, particularly in the synthesis of complex molecules and the study of spiro compounds' properties.

4855-21-4

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4855-21-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4855-21-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,5 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4855-21:
(6*4)+(5*8)+(4*5)+(3*5)+(2*2)+(1*1)=104
104 % 10 = 4
So 4855-21-4 is a valid CAS Registry Number.

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