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4-chloro-spiro[5.5]undec-3-en-2-one is a chemical compound with the molecular formula C10H15ClO. It is a colorless liquid with a molecular weight of 182.68 g/mol. 4-chloro-spiro[5.5]undec-3-en-2-one is characterized by a spiro ring system, which consists of two fused rings sharing a common carbon atom. The structure features a 4-chloro substituent on the spiro ring, an enone functional group, and an alkene double bond. It is synthesized through various chemical reactions and is used in the pharmaceutical and chemical industries for the production of various compounds. Due to its unique structure and properties, 4-chloro-spiro[5.5]undec-3-en-2-one has potential applications in the development of new drugs and materials.

1781-80-2

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1781-80-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1781-80-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,8 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1781-80:
(6*1)+(5*7)+(4*8)+(3*1)+(2*8)+(1*0)=92
92 % 10 = 2
So 1781-80-2 is a valid CAS Registry Number.

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