20881-04-3,双丙酮木糖, Diacetone-D-xylose, CAS:20881-04-3
作者:20881-04-3,双丙酮木糖, Diacetone-D-xylose, CAS:20881-04-3 发布时间:2022-09-13 17:34:56
次浏览
20881-04-3,双丙酮木糖, Diacetone-D-xylose, CAS:20881-04-3
C11H18O5 / 230.26
MFCD000632241,2:3,5-Di-O-isopropylidene-a-D-xylofuranose
CAS No:
20881-04-3
Synonyms:
Diacetone-D-xylose
MDL No:
MFCD00063224
Chemical Formula:
C11H18O5
Molecular Weight:
230.26
Product Structure
COA:
Product name: 1,2:3,5-Di-O-isopropylidene-alpha-D-xylofuranose; Diacetone-D-xylose
CAS: 20881-04-3 M.F.: C11H18O5 M.W.: 230.26
Batch No: 20120208 Quantity:836g
Items
Standards
Results
Appearance
White crystalline power
Positive
Solubility
Soluble in CHCl3 and
insoluble in water
Complies
NMR and ESI-MS
Should comply
Complies
Identification
IR and TLC
Positive
Melting point
40℃ ~45℃
43℃ ~45℃
Optical Activity
[α]20/D (c=3 inAcetone)
18 o ~ 20o
19.4°
Loss Weight On Dryness
Max. 0.5%
Complies
Residue on ignition
Max. 0.5%
0.05%
Heavy metal
Max. 20ppm
Complies
TLC (15%H2SO4-C2H5OH)
One spot
Complies
Assay
Min. 98%
99.2%
References:
1. Lin TY, Chang HC, Lagow RJ, J. Org. Chem. 1999, Oct 29, 64(22), 8127-8129