有机化学
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Amethyst
J&K
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Frontier
Strem
Accela
Apollo
ChemBridge
Matrix
Rieke Metals
TCI
ChromaDex
Daicel(大赛璐)
Maybridge
Aldrich
纯度
全部
= 99% (HPLC)
> 90
> 97 %
> 97%
> 98%
>90%
>93%
>95%
>96%
>97%
>98.0%(GC)
>98.0%(N)%+
>98%
>98%%+
>99.5%(GC)
>99%
≥85%
≥90%
≥90% (HPLC)
≥90% (oligomer purity)
≥94%
≥95.0%
≥95.0% (GC)
≥95.0% (HPLC)
≥95.0% (sum of enantiomers, GC)
≥95.0% (T)
≥95%
≥95% (GC)
≥95% (oligomer purity)
≥95% (titration)
≥95%, FCC, FG
≥95%, stabilized, FCC, FG
≥96.0%
≥96.0% (GC)
≥96%
≥96%, FG
≥97.0%
≥97.0% (calc. based on dry substance, NT)
≥97.0% (GC)
≥97.0% (HPLC)
≥97.0% (sum of enantiomers, GC)
≥97.0% (T)
≥97%
≥97% (HPLC)
≥97%, FCC, FG
≥97%, FG
≥98.0%
≥98.0% (GC)
≥98.0% (HPLC)
≥98.0% (sum of enantiomers, GC)
≥98.0% (T)
≥98.5%
≥98.6%
≥98%
≥98% (HPLC)
≥98% (iodometric)
≥98%, FCC, FG
≥98%, FG
≥99.0% (GC)
≥99.0% (HPLC)
≥99.0% (NT)
≥99.0% (sum of enantiomers, GC)
≥99.0% (sum of enantiomers, HPLC)
≥99.5%
≥99.5% (GC)
≥99.5% (HPLC)
≥99.6%
≥99%
≥99% (GC)
≥99% (HPLC)
≥99%, contains ≤50 ppm monomethyl ether hydroquinone as inhibitor
≥99%, FG
0.2 g/mL in 0.1 M phosphate buffer, 96%
1.0 M in THF
10 wt. % in propylene glycol, FG
100 μg/mL in MeOH
100-200 mesh, extent of labeling: 0.5-1.5 mmol/g loading, 1 % cross-linked with
14% in methanol
20 atom % 17O
30-35%
50 wt. % in H2O
50 wt. % in H2O, 99.999%
50.0%(GC)
60 wt. % in H2O
60:40% (w/w)
60.0%(GC)
70.0%(GC)
70%
70%+
75.0%(GC)
75.0%(LC)
75.0%(T)
75%
80.0%(GC)
80.0%(GC&T)
80.0%(LC)
80.0%(LC&T)
80.0%(NMR)
80.0%(T)
80%
80% in H2O, technical grade
83.0%(GC)
84%
85.0%(GC)
85.0%(GC&N)
85.0%(LC)
85.0%(LC&T)
85.0%(NMR)
85.0%(T)
85%
85%, technical grade
85+%
87.0%(GC)
88.0%(GC)
89.0%(GC)
89%
90.0%(GC)
90.0%(LC)
90.0%(LC&T)
90.0%(NMR)
90.0%(T)
90%
90%, technical grade
90%+
90+%
92.0%(GC)
93.0%(GC)
93.0%(GC&T)
93.0%(LC)
93.0%(LC&T)
93.0%(T)
93%
93+%
94.0%(GC)
94.0%(T)
94%
94+%
95 atom % 18O
95.0%
95.0%(GC)
95.0%(GC&T)
95.0%(LC)
95.0%(LC&T)
95.0%(T)
95.0%(T&LC)
95%
95% anhydrous basis
95%, FG
95%%+
95%+
95+%
96.0%(GC)
96.0%(GC&T)
96.0%(LC)
96.0%(LC&N)
96.0%(LC&T)
96.0%(N)
96.0%(T)
96%
96+%
97.0%
97.0%(GC)
97.0%(GC&T)
97.0%(LC)
97.0%(LC&N)
97.0%(LC&T)
97.0%(N)
97.0%(T)
97.0%(T&NMR)
97.00%
97.5%
97%
97%, Mixture of isomers
97%, optical purity ee: 97% (GLC)
97%, optical purity ee: 98% (GLC)
97%, optical purity97% (ee) (HPLC)
97%, optical purity99% (ee) (GLC)
97%%+
97%+
97+%
98 atom % D
98.0%
98.0%(GC)
98.0%(GC&N)
98.0%(GC&T)
98.0%(LC)
98.0%(LC&E)
98.0%(LC&N)
98.0%(LC&T)
98.0%(N)
98.0%(N&LC)
98.0%(N&T)
98.0%(T)
98.0%(T&GC)
98.0%(T&LC)
98.0%(T&N)
98.5%
98.5%(GC)
98.5%(GC&T)
98%
98% (HPLC)
98% trace metals basis
98%, optical purity ee: 98% (GLC)
98%, optical purity ee: 99% (GLC)
98%%+
98+%
99.0%
99.0%(GC)
99.0%(GC&T)
99.0%(LC)
99.0%(LC&N)
99.0%(LC&T)
99.0%(T)
99.4%
99.5%
99.5%(GC)
99.5%(T)
99.7%
99.8%
99.9%
99.998%
99.999% trace metals basis
99%
99% (GC)
99% (mixture of isomers)
99%, mixture of isomers
99%, optical purity ee: 99% (GLC)
99%%+
99+%
ACS reagent, 99%
AldrichCPR
average Mn ~1,000
average Mn ~1,700, EO/phenol 15, contains 200 ppm MEHQ as inhibitor
average Mn ~2,600
average Mn ~266
average Mn ~320, 88 wt. % in H2O
average Mn ~468, EO/phenol 1.5, contains 250 ppm MEHQ as inhibitor
average Mn ~492, EO/phenol 3
average Mn ~5,300
average Mn ~512, EO/phenol 2
average Mn ~86,000
average Mv ~90,000
average Mw ~1,180
average Mw ~1,380
average Mw ~1,460
average Mw ~1,540
average Mw ~380,000
contains ≤7% KCl, 93%
contains 0.4% hydroquinone as stabilizer, ≥96%
contains 200 ppm hydroquinone monomethyl ether as inhibitor, 95%
contains 250 ppm monomethyl ether hydroquinone as inhibitor
contains 700-1000 ppm monomethyl ether hydroquinone, 90%
extent of labeling: ~0.7 mol per mol cellulose
extent of labeling: 0.6 molar substitution
FCC, FG
for microscopy
glycerol/phenol 1
indicator grade
melt index 10-12 g/10 min (300°C/1.2kg)
min. 85%
min. 95%
min. 97%
mixture of isomers, 96%, FG
mol wt 350-450 g/epoxide by perchloric acid method
N/A
nanopowder, <200 nm particle size (BET), contains 5 wt. % silica as dopant, synt
natural, ≥98%, FCC, FG
natural, ≥98%, FG
natural, 97%, FG
optical purity ee: 99% (GLC)
powder
powder, 65%
produced by Wacker Chemie AG, Burghausen, Germany
purified by redistillation, ≥99.5%
purified by sublimation, 99%
racemic, ≥98.0% (GC)
reagent grade, powder, synthetic
ReagentPlus?, ≥99.5% (GC)
ReagentPlus?, ≥99%
ReagentPlus?, 99%
solid
synthetic, 99.8% trace metals basis (excludes Mg)
tech
tech. 85%
tech. 90%
Tech. 90%
technical
technical grade
technical grade, 85%
technical grade, 90%
technical grade, 95%
technical grade, contains 100-150 ppm HQ as inhibitor, 150-200 ppm MEHQ as inhib
technical grade, mixture of ring and chain isomers
technical, ~40% (TLC)
technical, ~70% (GC)
technical, ≥80% (GC)
technical, ≥85% (as solvent-free, GC)
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