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2-Hydroxymethyl-2R,4S,5-trihydroxypentanoic acid-1,4-lactone, also known as D-glycero-D-gulo-heptono-1,4-lactone or simply gulonic gamma-lactone, is a naturally occurring organic compound with the molecular formula C7H12O6. It is a cyclic derivative of a sugar acid, specifically a lactone formed from the sugar acid gulonic acid. 2-hydroxymethyl-2R,4S,5-trihydroxypentanoic acid-1,4-lactone is of significant interest in the food industry due to its ability to convert to L(+)-tartaric acid, a key component in the production of high-fructose corn syrup. Additionally, it is used in the synthesis of vitamin C (ascorbic acid) and as a flavoring agent. Its chiral structure, with the R and S configurations at the 2nd and 4th carbon atoms respectively, is crucial for its biochemical properties and applications.

7388-79-6

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7388-79-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7388-79-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,8 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7388-79:
(6*7)+(5*3)+(4*8)+(3*8)+(2*7)+(1*9)=136
136 % 10 = 6
So 7388-79-6 is a valid CAS Registry Number.

7388-79-6Upstream product

7388-79-6Downstream Products

7388-79-6Relevant academic research and scientific papers

A robust method for the synthesis and isolation of β-gluco- isosaccharinic acid ((2R,4S)-2,4,5-trihydroxy-2-(hydroxymethyl)pentanoic acid) from cellulose and measurement of its aqueous pKa

Shaw, Paul B.,Robinson, Glenn F.,Rice, Craig R.,Humphreys, Paul N.,Laws, Andrew P.

, p. 6 - 11 (2012)

In alkaline pulping wood pulp is reacted with concentrated aqueous alkali at elevated temperatures. In addition to producing cellulose for the manufacture of paper, alkaline pulping also generates large amounts of isosaccharinic acids as waste products. I

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