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2-O,3-O,4-O,5-O,6-O-Pentakis(trimethylsilyl)-D-galactose is a complex organic compound derived from D-galactose, a monosaccharide sugar. 2-O,3-O,4-O,5-O,6-O-Pentakis(trimethylsilyl)-D-galactose is characterized by the presence of five trimethylsilyl (TMS) groups, which are attached to the hydroxyl groups at the 2nd, 3rd, 4th, 5th, and 6th carbon positions of the galactose molecule. The TMS groups are used to protect the hydroxyl groups, which is a common practice in organic synthesis to prevent unwanted reactions at these sites. 2-O,3-O,4-O,5-O,6-O-Pentakis(trimethylsilyl)-D-galactose is often used in the field of organic chemistry, particularly in the synthesis of complex carbohydrates and as a protecting group in the preparation of various glycoconjugates. The TMS protection allows for selective reactions to occur at other parts of the molecule, and the protected groups can be removed under specific conditions when needed, making 2-O,3-O,4-O,5-O,6-O-Pentakis(trimethylsilyl)-D-galactose a valuable tool in the synthesis of complex organic molecules.

6736-94-3

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6736-94-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6736-94-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,7,3 and 6 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6736-94:
(6*6)+(5*7)+(4*3)+(3*6)+(2*9)+(1*4)=123
123 % 10 = 3
So 6736-94-3 is a valid CAS Registry Number.

6736-94-3Downstream Products

6736-94-3Relevant academic research and scientific papers

Novel quercetin glucosides from Helminthostachys zeylanica root and acceleratory activity of melanin biosynthesis

Yamauchi, Kosei,Mitsunaga, Tohru,Batubara, Irmanida

, p. 369 - 374 (2013)

Two novel quercetin glucosides, namely 4′-O-β-d-glucopyranosyl- quercetin-3-O-β-d-glucopyranosyl-(1→4)-β-d-glucopyranoside (compound 1) and 4′-O-β-d-glucopyranosyl-(1→2)-β-d- glucopyranosyl-quercetin-3-O-β-d-glucopyranosyl-(1→4) -β-d-glucopyranoside (compound 2), were isolated from Helminthostachys zeylanica root 50 % EtOH extract. Structural analysis of isolated compounds was achieved mainly by 600 MHz and 800 MHz NMR, UPLC-TOFMS and GC-MS. Of the two quercetin glucosides, compound 1 showed a high melanogenic acceleratory effect, 2.7 times higher than control, at 10 μM concentration in murine B16 melanoma cells, with no cytotoxic effect.

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