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4-(4-Hydroxy-phenoxy)-3,5-diiod-benzylalkohol, also known as 3,5-diiodo-4-(4-hydroxyphenoxy)benzyl alcohol, is a complex organic compound with the molecular formula C13H11IO4. It is a white crystalline solid that is soluble in organic solvents. 4-(4-Hydroxy-phenoxy)-3,5-diiod-benzylalkohol is characterized by the presence of two iodine atoms at the 3rd and 5th positions of a benzene ring, a hydroxyl group at the 4th position, and a phenoxy group attached to the benzyl alcohol moiety. It is used in the synthesis of pharmaceuticals and other organic compounds due to its unique structure and reactivity. The compound's properties, such as its solubility and reactivity, make it a valuable intermediate in the production of certain drugs and other chemical products.

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Check Digit Verification of cas no

The CAS Registry Mumber 728-34-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,2 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 728-34:
(5*7)+(4*2)+(3*8)+(2*3)+(1*4)=77
77 % 10 = 7
So 728-34-7 is a valid CAS Registry Number.

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