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207113-58-4

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207113-58-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 207113-58-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,1,1 and 3 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 207113-58:
(8*2)+(7*0)+(6*7)+(5*1)+(4*1)+(3*3)+(2*5)+(1*8)=94
94 % 10 = 4
So 207113-58-4 is a valid CAS Registry Number.

207113-58-4Downstream Products

207113-58-4Relevant articles and documents

Synthesis of two pyranoquinolinones. What is the structure of cherimoline ?

Ajana, Wadi,Feliu, Lidia,Alvarez, Mercedes,Joule, John A.

, p. 4405 - 4412 (1998)

Ethyl quinolin-4-one-3-carboxylate has been converted in 4 steps into 4H-pyrano[3,4c]quinolin-4-one and 3-methoxyquinolin-4-one has been convened in 3 steps into 3H-pyrano[2,3c]quinolin-3-one. Neither of these tricyclic lactones corresponds to natural cherimoline.

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