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Tetrachloro-phthalic acid-anhydride, also known as TCPA, is a chemical compound with the formula C8Cl4O3. It is a derivative of phthalic anhydride, where four of the hydrogen atoms have been replaced by chlorine atoms. TCPA is often used as an intermediate in the production of various chemicals, including dyes and pharmaceuticals. When combined with phenanthrene, a polycyclic aromatic hydrocarbon with the formula C14H10, the resulting compound is a complex mixture that may have specific applications in chemical synthesis or as a research tool. The combination of these two chemicals can lead to the formation of new compounds with unique properties, depending on the reaction conditions and the intended use.

3178-32-3

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3178-32-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3178-32-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,1,7 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3178-32:
(6*3)+(5*1)+(4*7)+(3*8)+(2*3)+(1*2)=83
83 % 10 = 3
So 3178-32-3 is a valid CAS Registry Number.

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