157843-41-9, 2-氯-PNP-α-L-岩藻糖苷, CAS:157843-41-9
作者:157843-41-9, 2-氯-PNP-α-L-岩藻糖苷, CAS:157843-41-9 发布时间:2022-09-08 14:56:15
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157843-41-9, 2-Chloro-4-nitrophenyl α-L-fucopyranoside, CAS:157843-41-9
C12H14ClNO7 / 319.69
MFCD049720562-Chloro-4-nitrophenyl a-L-fucopyranoside
CAS No:
157843-41-9
MDL No:
MFCD04972056
Chemical Formula:
C12H14ClNO7
Molecular Weight:
319.69
Product Structure
COA:
Name: 2-Chloro-4-nitrophenyl-alpha-L-fucopyranoside; CNP-AFU; CNPF
CAS: 157843-41-9 M.F.: C12H14ClNO7 M.W.: 319.69
Items
Standards
Results
Appearance
White crystal powder
Complies
Solubility
Soluble in DMF,
insoluble in petroleum ether
Complies
Identification
IR and HPLC
Complies
MS and NMR
Should comply
Complies
Melting point
150℃ ~ 160 °C
155℃ ~158 ℃
Specific rotation
( [α]20/D)
-163o ~ -173o
-172.5o
Any other impurity
Max. 0.5%
Complies
Heavy metal
Max. 20ppm
Complies
Residue on ignition
Max. 0.5%
0.1%
TLC
Should be one spot
One spot
Assay by HPLC
Min. 98%
99.2%
Chromogenic
substrate for alpha-L-Fucosidase. The AFU assay kit is based on the enzymatic cleavage of the synthetic substrate CNPF to α-L-fucose and 2-chloro-4-nitrophenol, which is quantified by measuring the absorbances at 405 nm in a kinetic fashion. It is a one step assay with a single assay reagent. One unit of AFU is defined as the amount of AFU that cleaves one μmole of 2-chloro-4-nitrophenyl-α-L-fucoside per min at37 °C.