526-99-8 Usage
Description
Mucic acid,C6H10O8 or HOOC-(CHOH)4-COOH, (also known as galactaric or meso - galactaric acid) is an aldaric acid obtained by nitric acid oxidation of galactose or galactose - containing compounds like lactose, dulcite, quercite, and most varieties of gum. It forms a crystalline powder, which melts at 230°C. It is insoluble in alcohol, and nearly insoluble in cold water. Due to the symmetry in the molecule, it is optically inactive even though it has chiral carbon atoms (i.e., it is a meso compound). When heated with pyridine to 140°C, it is converted into allommic acid. When digested with fuming hydrochloric acid for some time it is converted into a furfural dicarboxylic acid while on heating with barium sulfide it is transformed into athiophene carboxylic acid. The ammonium salt yields on dry distillation carbon dioxide, ammonia, pyrrol and other substances. The acid when fused with caustic alkalis yields oxalic acid. With potassium bisulfate mucic acid forms 3-hydroxy-2-pyrone by dehydration and decarboxylation.
Uses
Different sources of media describe the Uses of 526-99-8 differently. You can refer to the following data:
1. Mucic acid can be used to replace tartaric acid in self-rising flour or fizzies.
2. Mucic acid is used to replace tartaric acid in self-rising flour or fizzies. It is also used as a precursor of adipic acid en route to nylon by a rhenium-catalyzed deoxydehydration reaction. It replaces potassium bitartrate in baking powder and also used for manufacture of granular effervescing salts.
3. Substitute for tartaric acid, sequestrant for metalions (calcium, iron), retards hardening of concreteintermediate for synthesis of heterocyclic com-pounds (pyrroles).
Definition
ChEBI: A hexaric acid resulting from formal oxidative ring cleavage of galactose.
Check Digit Verification of cas no
The CAS Registry Mumber 526-99-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 526-99:
(5*5)+(4*2)+(3*6)+(2*9)+(1*9)=78
78 % 10 = 8
So 526-99-8 is a valid CAS Registry Number.
InChI:InChI=1/C6H10O8/c7-3(8)1-2-5(11,12)6(13,14)4(9)10/h11-14H,1-2H2,(H,7,8)(H,9,10)
526-99-8Relevant articles and documents
PROCESSES FOR PREPARING ALDARIC, ALDONIC, AND URONIC ACIDS
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Paragraph 0132-0143, (2021/05/29)
Various processes for preparing aldaric acids, aldonic acids, uronic acids, and/or lactone(s) thereof are described. For example, processes for preparing a C5-C6 aldaric acid and/or lactone(s) thereof by the catalytic oxidation of a C5-C6 aldonic acid and/or lactone(s) thereof and/or a C5-C6 aldose are described.
OXIDATION OF URONIC ACIDS TO ALDARIC ACIDS
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Paragraph 0032; 0037, (2017/11/10)
Disclosed is the oxidation of uronic acids, such as galacturonic acid, to the corresponding aldaric acids, such as galactaric acid, under neutral or acidic conditions. Use is made of a supported gold catalyst. The oxidation occurs in good selectivity and yield, under unexpectedly mild conditions. A source of galacturonic acids is pectins, such as from sugar beet pulp.
Novel synthetic process of mucic acid
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Paragraph 0035-0037; 0067, (2017/06/10)
The present invention relates to a method of synthesizing mucic acid from galactose derived from biomass including marine resources, and more specifically, to a method of synthesizing mucic acid which utilizes galactose as a starting material and through a chemical reaction, induces an oxidation reaction to synthesize mucic acid. The method of the present invention can easily synthesize mucic acid in a high yield from galactose and the like under low temperature and atmospheric pressure operating conditions, can be used as an intermediate to produce bio adipic acid, the raw material of nylon 66 that is used as a material for automobile parts, and, therefore, has high industrial applicability.(AA) Marine bio sugar mixture obtained after saccharification using non-food marine resources (galactose, or a mixture of galactose, glucose and rhamnose)(BB) Mixing of aqueous nitric acid solution with sugar mixture(CC) Oxidation reaction of bio sugar under low temperature condition (-15~0anddeg;C)(DD) Washing of solid products produced from chemical reaction and extraction of high-purity mucic acid particles using aqueous solution, having mucic acid dissolved therein, prepared in advanceCOPYRIGHT KIPO 2017