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4-Chloro-2-furancarboxylic acid is an organic compound with the chemical formula C5H3ClO3. It is a derivative of furan, a heterocyclic aromatic compound, with a chlorine atom attached to the 4-position and a carboxylic acid group at the 2-position. This pale yellow crystalline solid is soluble in water and has a molecular weight of 150.53 g/mol. It is primarily used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other specialty chemicals. Due to its reactivity and functional groups, 4-chloro-2-furancarboxylic acid can undergo a range of chemical reactions, making it a valuable building block in organic synthesis.

4303-17-7

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4303-17-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4303-17-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,0 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4303-17:
(6*4)+(5*3)+(4*0)+(3*3)+(2*1)+(1*7)=57
57 % 10 = 7
So 4303-17-7 is a valid CAS Registry Number.

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