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2,5-Anhydro-D-mannonic acid is a chemical compound with the molecular formula C6H10O5. It is a derivative of D-mannose, a monosaccharide, and is characterized by the absence of two hydroxyl groups and a water molecule, resulting in an anhydro ring structure. 2,5-anhydro-D-mannonic acid is used in the synthesis of various pharmaceuticals and biologically active molecules due to its unique structure and reactivity. It plays a significant role in organic chemistry and biochemistry, particularly in the study of carbohydrate chemistry and the development of new drugs.

490-95-9

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490-95-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 490-95-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,9 and 0 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 490-95:
(5*4)+(4*9)+(3*0)+(2*9)+(1*5)=79
79 % 10 = 9
So 490-95-9 is a valid CAS Registry Number.

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