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2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->6)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose is a complex organic compound that belongs to the class of disaccharides. It is a derivative of the naturally occurring disaccharide lactose, which is composed of two sugar units, glucose and galactose. In 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1-> 6)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose, the galactose unit is in the β-D-galactopyranose form and is linked to the α-D-galactopyranose unit through a 1,6-glycosidic bond. The molecule is protected with acetyl groups at the 2, 3, 4, and 6 positions of the β-D-galactopyranosyl unit and isopropylidene groups at the 1,2:3,4 positions of the α-D-galactopyranose unit. These protecting groups are commonly used in organic synthesis to prevent unwanted side reactions and facilitate the selective modification of specific functional groups. 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1-> 6)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose is of interest in the field of carbohydrate chemistry, where it may be used as an intermediate in the synthesis of more complex glycoconjugates or for studying the properties of disaccharides and their derivatives.

5239-08-7

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5239-08-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5239-08-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,3 and 9 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 5239-08:
(6*5)+(5*2)+(4*3)+(3*9)+(2*0)+(1*8)=87
87 % 10 = 7
So 5239-08-7 is a valid CAS Registry Number.

5239-08-7Relevant academic research and scientific papers

1,6-Epithio- and 1,6-Episeleno-β-D-glucopyranose: Useful Adjuncts in the Synthesis of 6-Deoxy-β-D-glucopyranosides

Stick, Robert V.,Tilbrook, D. Matthew G.,Williams, Spencer J.

, p. 685 - 694 (2007/10/03)

Derivatives of 1,6-dideoxy-1,6-epithio- and 1,6-dideoxy-1,6-episeleno-β-D-glucopyranose have been shown to be effective glycosyl donors toward carbohydrate alcohols under the agency of N-iodosuccinimide/trifluoromethanesulfonic acid. Reduction of the inte

STANNOUS TRIFLATE MEDIATED GLYCOSIDATIONS. A STEREOSELECTIVE SYNTHESIS OF β-D-GLUCOSIDES.

Lubineau, Andre,Malleron, Annie

, p. 1713 - 1716 (2007/10/02)

Various 1,2 trans, β-D-linked disaccharides with glucose as non-reducing unit have been prepared with complete stereoselectivity from acetobromoglucose and suitably protected sugar derivatives using stannous triflate as promoter.

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