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半乳糖苷

  • 7240-90-6,X-gal,5-溴-4-氯-3-吲哚基-β-D-吡喃半乳糖苷,CAS:7240-90-6
7240-90-6,X-gal,5-溴-4-氯-3-吲哚基-β-D-吡喃半乳糖苷,CAS:7240-90-6

7240-90-6,X-gal,5-溴-4-氯-3-吲哚基-β-D-吡喃半乳糖苷,CAS:7240-90-6

  • CAS:7240-90-6
  • C14H15BrClNO6 / 408.63
  • MFCD00005666
  • 产品描述:7240-90-6,X-gal,5-Bromo-4-chloro-3-indolyl-beta-D-galactoside, CAS:7240-90-6
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COA:

Name: 5-Bromo-4-chloro-3-indolyl-beta-D-galactoside, X-gal   

 CAS7240-90-6    M.F.C14H15BrClNO6      M.W.408.63   

Items

Standards

Results

Appearance

White crystalline power

Positive

Solubility

Soluble in DMF and

insoluble in ether

Positive

NMR and MS

Should comply

Complies

Identification

IR and TLC

Positive

M.P.

200  ~  230

205 ~230

[a]20D [C=1 inH2O/DMF 1:1]

-60 ~  -65o

-63.8o

Loss Weight On Dryness

Max. 1%

Complies

Alpha-Isomer

Max. 0.5%

0

TLC (15%H2SO4-C2H5OH)

Should be one spot

Complies

Assay by HPLC

Min. 98%

99.2%

References:
1. Weiss DJ, Liggitt D, Clark JG, Human Gene Therapy 1997, 8, 13, p1545-1554
2. Engler KH, et al., J. Microbiol. Methods 1999, 35, p207
3. Arakawa H, et al., Anal. Biochem. 1991, 199, p238