4064-06-6,双丙酮半乳糖,Di-acetone-a-D-galactopyranose, CAS: 4064-06-6

4064-06-6,双丙酮半乳糖; 二丙酮-D-半乳糖; 1,2:3,4-O-双异丙叉-Α-D-半乳糖; 1,2:3,4-双邻异丙基-Α-D-吡喃半乳糖; 1,2:3,4-双邻异丙基-D-吡喃半乳糖; 1,2:3,4-二-氧-异丙叉基-Α-D-半乳糖; 1,2:3,4-二-O-异亚丙基-Α-D-吡喃半乳糖
CAS: 4064-06-6

C12H20O6 / 260.28
MFCD00063225

CAS: 4064-06-6

Product name: 1,2:3,4-Di-O-isopropylidene-D-galactopyranose

CAS: 4064-06-6 M.F.: C₁₂H₂₀O₆ M.W.:260.28

*Items*	*Standards*	*Results*
Appearance	A white or slightly yellowish syrup	Positive
Solubility	Soluble in CHCl₃ and less soluble in petroleum ether	Complies
Appearance of solution	Dissolve0.5gin 10mL of CHCl₃, and the solution should be clear	Complies
NMR and ESI-MS	Should comply	Complies
Identification	IR and TLC	Positive
Optical Activity [α]^20/D (c = 3% in CHCl₃)	-58^o ~ -60^o	-59.2^o
Refractive Index n20/D	1.4 ~ 1.5	1.46
Density	1.13 ~ 1.15	1.14
Residue on ignition	Max. 0.5%	0.05%
Heavy metal	Max. 20ppm	Complies
TLC (15%H₂SO₄-C₂H₅OH)	One spot	Complies
Assay	Min. 97%	99.2%