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13992-23-9

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13992-23-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13992-23-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,9,9 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 13992-23:
(7*1)+(6*3)+(5*9)+(4*9)+(3*2)+(2*2)+(1*3)=119
119 % 10 = 9
So 13992-23-9 is a valid CAS Registry Number.

13992-23-9Relevant articles and documents

Regioselective Dehydration of Sugar Thioacetals under Mild Conditions

Szpara, Rachel,Goyder, Alexander,Porter, Michael J.,Hailes, Helen C.,Sheppard, Tom D.

supporting information, p. 2488 - 2492 (2021/04/13)

Sugars are abundant in waste biomass, making them sustainable chiral building blocks for organic synthesis. The demand for chiral saturated heterocyclic rings for pharmaceutical applications is increasing as they provide well-defined three-dimensional frameworks that show increased metabolic resistance. A range of sugar thioacetals can be dehydrated selectively at C-2 under mild basic conditions, and the resulting ketene thioacetals can be applied to the production of useful chiral building blocks via further selective dehydration reactions.

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