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糖酯

  • 4163-60-4,  β-D-半乳糖五乙酸酯, CAS:4163-60-4
4163-60-4,  β-D-半乳糖五乙酸酯, CAS:4163-60-4

4163-60-4, β-D-半乳糖五乙酸酯, CAS:4163-60-4

  • CAS:4163-60-4
  • C16H22O11 / 390.34
  • MFCD00063259
  • 产品描述:4163-60-4, Beta-D-Galactose pentaacetate, CAS:4163-60-4
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1,2,3,4,6-Penta-O-acetyl-b-D-galactopyranose

CAS No:
4163-60-4
Synonyms:
b-D-Galactose pentaacetate
MDL No:
MFCD00063259
Chemical Formula:
C16H22O11
Molecular Weight:
390.34
Product Structure
COA:

Product name: Beta-D-Galactose pentaacetate, 1,2,3,4,6-Penta-O-acetyl-beta-D-galactopyranose                               CAS: 4163-60-4       

M.F.: C16H22O11     M.W.: 390.34    Batch No: 20130213    Quantity: 1.5kg

      Items

Standards

Results

Appearance

White crystal powder

Complies

Solubility

Soluble in CHCl3, insoluble in water.

The solution should be clourless and clear. (1g/10mL in CHCl3)

Complies

Identification

IR and TLC

Complies

Melting point

142  ~  146°C

143 ~146 

Specific rotation

[a]D20 (in CHCl3)

+23 ~  +25o

+24.6o

Water content (K.F.)

Max.0.5%

0.02%

Residue on ignition

Max. 0.1%

0.06%

TLC

Should be one spot

One spot

Alpha-isomer

Max.0.5%

0.21%

Assay (HPLC)

Min. 99%

99.2%

References:
1. Khiar N, Martin-Lomas M, J. Org. Chem. 1995, Vol60, p7017-7021
2. Spero L, Ballou CE, Link KP, J. Am. Chem. Soc. 1949, Vol71, p3740