9005-79-2 Usage
Description
Glycogen is a branched polymer of glucose synthesized by animal cells for energy storage and release. It is constructed of predominantly α1→4 glycosidic bonds with branches created through α1→6 glycosidic bonds. It is a high molecular-weight polysaccharide that is the main carbohydrate store of animals, composed of many glucose units linked in a similar way to starch. Glycogen is readily hydrolyzed in a stepwise manner to glucose itself and is stored largely in the liver and in muscle but is found widely distributed in the body. It appears as a white to off-white powder.
Uses
Used in Biochemical Research:
Glycogen from rabbit liver has been used as a standard for measurement of the hepatic glycogen content. In the 1,4-α-D glucan:orthophosphate α-glucosyl transferase assay, it has been used in the assay mixture. It has also been used as a standard for myocardial tissue glycogen analysis.
Used in Cosmetics and Skincare:
Glycogen is used as a skin-conditioning agent. It is a high molecular-weight polymer distributed through the cell protoplasm, providing hydration and improving skin texture.
Used in Molecular Biology:
Glycogen serves as an inert carrier which significantly increases the efficiency of extracted DNA and RNA by ethanol precipitation, aiding in the purification and analysis of genetic material.
Biochem/physiol Actions
Glycogen from rabbit liver helps in maintaining blood glucose levels by regulating the release of glucose in between meals. It also provides energy during sudden, strenuous activity. Two important areas of glycogen storage are the liver and skeletal muscle.
Purification Methods
A 5% aqueous solution (charcoal) of D(+)-glycogen is filtered, and an equal volume of EtOH is added. After standing overnight at 3o the precipitate is collected by centrifugation, washed with absolute EtOH, then EtOH/diethyl ether (1:1) and diethyl ether, and dried. [Sutherland & Wosilait J Biol Chem 218 459 1956.]
Check Digit Verification of cas no
The CAS Registry Mumber 9005-79-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,0 and 5 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 9005-79:
(6*9)+(5*0)+(4*0)+(3*5)+(2*7)+(1*9)=92
92 % 10 = 2
So 9005-79-2 is a valid CAS Registry Number.
InChI:InChI=1/C24H42O21/c25-1-5-9(28)11(30)16(35)22(41-5)39-4-8-20(45-23-17(36)12(31)10(29)6(2-26)42-23)14(33)18(37)24(43-8)44-19-7(3-27)40-21(38)15(34)13(19)32/h5-38H,1-4H2/t5-,6-,7-,8-,9-,10-,11+,12+,13-,14-,15-,16-,17-,18-,19-,20-,21+,22+,23-,24-/m1/s1
