有机化学
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Amethyst
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1-Material
AccuStandard
Fluorochem
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Strem
Accela
Apollo
ChemBridge
Key Organics
Matrix
Rieke Metals
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TCI
TRC
Chem Service
Chiron
Maybridge
Aldrich
纯度
全部
-
>85%
>90%
>95
>95%
>95%%+
>96%
>97.0%
>97.0%(GC)%+
>97%
>97%%+
>98%
>99%
>99%%+
~0.5?M in tert-butyl methyl ether, ≥95.0% (HPLC)
~18?wt. % in solution
~28% active chlorine basis
~50%
~85%
≥90%
≥90% (TLC)
≥92%, FCC
≥94%
≥95.0%
≥95.0% (GC)
≥95.0% (HPLC)
≥95.0% (S)
≥95.0% (sum of enantiomers, GC)
≥95.0% (T)
≥95%
≥95% (HPLC)
≥95% (NMR)
≥95%, FCC
≥95%, FG
≥95%, FG, FCC
≥96.0%
≥96%
≥96%, FCC
≥96%, FCC, FG
≥96%, FG
≥97.0%
≥97.0% (GC)
≥97.0% (H-NMR)
≥97.0% (HPLC)
≥97.0% (N)
≥97.0% (S)
≥97.0% (sum of enantiomers, GC)
≥97.0% (T)
≥97%
≥97%, FCC
≥97%, FCC, FG
≥97%, FG
≥98.0%
≥98.0% (calc. based on dry substance, T)
≥98.0% (GC)
≥98.0% (GC/NT)
≥98.0% (HPLC)
≥98.0% (HPLC), purified by sublimation
≥98.0% (sum of enantiomers, HPLC)
≥98.0% (sum of isomers, GC), ≤5.0% 2-BHA basis (GC)
≥98.0% (T)
≥98.0% (TLC)
≥98.5%
≥98.5% (CHN)
≥98.5%, FCC
≥98%
≥98%, ≤20?wt. % solvent
≥98%, FCC
≥98%, FCC, FG
≥98%, FG
≥98%, FG, FCC
≥98%, isoamyl benzoate 70?%, FCC
≥99.0%
≥99.0% (C)
≥99.0% (GC)
≥99.0% (HPLC)
≥99.0% (sum of enantiomers, GC)
≥99.0% (sum of enantiomers, HPLC)
≥99.0% (T)
≥99.0%, contains ~0.005% 4-tert-butylcatechol as inhibitor
≥99.5% (GC)
≥99.5%, NMR grade
≥99%
≥99% (GC)
≥99%, contains <=20 ppm Hydroquinone and/or <=50 ppm MEHQ as stabilizer
≥99%, FCC
≥99%, FCC, FG
≥99%, FG
≥99%, FG, FCC
0.25?M in THF
0.25?M slurry in THF
0.5?M in tert-butyl methyl ether, ≥95% (HPLC)
0.5?M in THF
0.6?M in glacial acetic acid, contains thiourea as stabilizer
0.98%+
1.0?M in THF
10% in chloroform-d (99.8 atom % D), NMR reference standard
10%±2% in toluene, ≥98% (HPLC)
100 μg/mL in MeOH
100-200?mesh, 1?% cross-linked
100-200?mesh, extent of labeling: 0.5-1.5?mmol/g F loading, 1?% cross-linked wit
100-200?mesh, extent of labeling: 0.5-1.5?mmol/g I loading, 1?% cross-linked wit
100-200?mesh, extent of labeling: 0.7-1.3?mmol/g loading, 1?% cross-linked
100-200?mesh, extent of labeling: 1.0-1.5?mmol/g loading, 1?% cross-linked
100-200?mesh, extent of labeling: 1.5-1.8?mmol/g loading, 1?% cross-linked with
100-200?mesh, extent of labeling: 1.7?mmol/g N loading, 1?% cross-linked with di
11?wt. %±5?wt. % in NMP/aromatic hydrocarbons (80%/20% solvent ratio)
12.0?wt. %±0.5?wt. % (80% NMP/20% xylene)
12.8?wt. %±0.5?wt. % (80% NMP/20% aromatic hydrocarbon)
15.0-16.0?wt. % in NMP
15.0?wt. %±5?wt. % in NMP/aromatic hydrocarbons (80%/20% solvent ratio)
18?mM in acetone, for chiral derivatization
20?wt. % in water: tert-butanol, 3:1
200-400?mesh particle size, 1?% cross-linked
200-400?mesh, extent of labeling: 1.0?mmol/g loading
200-400?mesh, extent of labeling: 1.5-2.0?mmol/g loading, 1?% cross-linked
40%
50 wt. % solids in n-methylpyrrolidinone solution
50-100?mesh, 1?% cross-linked
50-100?mesh, extent of labeling: 3.0?mmol/g loading, 1?% cross-linked
50-90?mesh, extent of labeling: 0.8-1.0?mmol/g loading, 1?% cross-linked
50.0%(GC)
50%
55?wt. % in isobutanol
55.0%(LC)
6%
60.0%(NMR)
60%
60% meta, 40% para and 1% ortho, 99%, contains ~50?ppm 4-tert-butylcatechol as i
65?wt. % in H2O
65.0%(GC)
65.0%(LC)
70?wt. % in isopropanol
70.0%(GC)
70.0%(N)
70.0%(T)
70%
75.0%(GC)
75%
8
80.0%(GC)
80.0%(LC)
80.0%(T)
80%
80%, technical grade
85.0%(GC)
85.0%(LC)
85.0%(LC&T)
85.0%(T)
85%
85%, technical grade
85+%
87.0%(GC)
88.0%(GC)
88%
89.0%(T)
90
90.0%(GC)
90.0%(LC)
90.0%(LC&N)
90.0%(LC&T)
90.0%(N)
90.0%(T)
90%
90%, technical grade
90+%
92.0%(GC)
92.0%(LC)
92.0%(N)
92.5%
92%
92+%
93.0%(GC)
93.0%(GC&T)
93.0%(LC)
93.0%(LC&T)
93.0%(T)
93%
94.0%(GC)
94.0%(T)
94%
94+%
95
95.0%(GC)
95.0%(GC&T)
95.0%(LC)
95.0%(LC&T)
95.0%(N)
95.0%(N&T)
95.0%(T)
95.0%(T&LC)
95%
95% (GC)
95% (TLC)
95%, contains <0.05% tert-butylcatechol as inhibitor
95%%+
95%+
95+%
95+%%+
96.0%(GC)
96.0%(GC&N)
96.0%(GC&T)
96.0%(LC)
96.0%(LC&T)
96.0%(N)
96.0%(T)
96.0%(T&LC)
96.5%
96%
96%, contains 200-300?ppm monomethyl ether hydroquinone as inhibitor
96%, contains 3,5-di-tert-butylcatechol as inhibitor
96+%
97.0%(GC)
97.0%(GC&N)
97.0%(GC&T)
97.0%(LC)
97.0%(LC&N)
97.0%(LC&N&T)
97.0%(LC&T)
97.0%(N)
97.0%(N&LC)
97.0%(T)
97.0%%+
97.5%
97%
97% (mixture of cis and trans), (Z)-Benzaldehyde oxime ≤6%
97% (predominantly trans)
97%, contains 0.1% 3,5-di-tert-butylcatechol as inhibitor
97%, contains 0.1% hydroquinone as stabilizer
97%, contains 100?ppm tert-butylcatechol as inhibitor
97%, contains 500?ppm 4-tert-butylcatechol as inhibitor
97%, mixture of cis and trans
97%, optical purity ee: 97% (GLC)
97%, predominantly trans
97%%+
97+%
98 atom % D
98.0% (T)
98.0%(GC)
98.0%(GC&N)
98.0%(GC&T)
98.0%(LC)
98.0%(LC&N)
98.0%(LC&NMR)
98.0%(LC&QNMR)
98.0%(LC&T)
98.0%(N)
98.0%(N&GC)
98.0%(N&LC)
98.0%(N&T)
98.0%(QNMR)
98.0%(T)
98.0%(T&GC)
98.0%(T&LC)
98.0%(T&QNMR)
98.00%%+
98.5%
98.5%(GC)
98%
98% (CP)
98%, contains 0.1% 3,5-di-tert-butylcatechol as stabilizer
98%, contains 500-1000?ppm BHT as stabilizer
98%, optical purity ee: 98% (HPLC)
98%%+
98+%
99.0%(GC)
99.0%(GC&LC)
99.0%(GC&T)
99.0%(LC)
99.0%(LC&N)
99.0%(LC&T)
99.0%(QNMR)
99.0%(T)
99.0%(T&GC)
99.0%(T&LC)
99.5%
99.5%(GC)
99.7%
99.8%
99.8%(GC)
99%
99%, contains 0.1% 3,5-di-tert-butylcatechol as inhibitor
99%, contains 0.1% p-tert-butylcatechol as inhibitor
99%, contains 0.25% 4-tert-butylcatechol as inhibitor
99%, contains 15?ppm p-tert-butylcatechol as inhibitor
99%, contains 4-tert-butylcatechol as inhibitor
99%, contains copper as stabilizer
99%, contains tert-butylcatechol as inhibitor
99%, FG
99%, purified by sublimation
99%%+
AldrichCPR
average Mw ~10,000
average Mw ~100,000
average Mw ~20,000
average Mw ~30,000, powder
average Mw ~5,000
average Mw ~50,000
average Mw ~65,000
catalyst grade (for peroxide polymerization), ≥98.5% (GC)
ChiPros?, produced by BASF, ≥97.5% (GC)
ChiPros?, produced by BASF, ≥98.5%
ChiPros?, produced by BASF, ≥98.5% (GC)
ChiPros?, produced by BASF, ≥98%
ChiPros?, produced by BASF, 99%
composite (20 wt.% polyaniline on carbon black)
composite (30 wt.% polyaniline on nylon)
contains ≤100?ppm tert-butylcatechol as inhibitor, 93%
contains 0.05% 3,5-di-tert-butylcatechol as inhibitor, 97%
contains 0.1% 3,5-di-tert-butylcatechol as inhibitor, 97%
contains 15?wt. % water as stabilizer, 97%
contains 4-tert-butylcatechol as inhibitor, 98%
contains 50-100?ppm tert-butylcatechol as stabilizer, technical grade, ≥90%
contains 50?ppm 4-tert-butylcatechol as inhibitor, >99%
contains 500?ppm tert-Butylcatechol as stabilizer, 98%
crystalline, 95%
Dye content 80?%
Dye content 85?%
Dye content 90?%
Dye content 95?%
Dye content 97?%
electronic grade, ≥99%
electronic grade, ≥99% trace metals basis
environmental standard, 99%
extent of labeling: ~1.0?mmol/g loading
extent of labeling: 0.5-1.3?mmol/g loading, 1?% cross-linked with divinylbenzene
fits Ace jacketed short path distillation apparatus
for fluorescence, ≥99%
in 2-ethoxyethyl ether
indicator grade
Joints: ST/NS 14/20 (3), H 250?mm, thermometer Joint: ST/NS 10/18
Joints: ST/NS 24/40 (3), H 380?mm, thermometer Joint: ST/NS 10/30
Joints: ST/NS 29/32 (3), H 380?mm, thermometer Joint: ST/NS 10/30
kanata purity
liquid crystal (nematic)
liquid crystal (nematic), 96%
liquid crystal (nematic), 98%
liquid crystal (nematic), 99%
macroporous, 50-100?mesh, extent of labeling: ~1.5?mmol/g loading
min. 95%
min. 97%
min. 98%
mixture of cis and trans, ≥97%, FG, may contain 0.2% BHA
mixture of isomers
mixture of isomers, ≥99% isomers basis (calc. to H2O free subst.)
mixture of isomers, 97%
mixture with Amyl hydrocinnamyl alcohol
N/A
natural, ≥95%, FG
natural, ≥97%, FCC, FG
natural, ≥97%, FG
natural, ≥98%, FCC, FG
natural, ≥99%, FCC, FG
neat
NMR reference standard, 0.05% in benzene-d6 (99.6 atom % D)
NMR reference standard, 0.1% in chloroform-d ("100%", 99.96 atom % D)
NMR reference standard, 0.1% in chloroform-d (99.8 atom % D), TMS 0.01?%
NMR reference standard, 0.1% in chloroform-d (99.8 atom % D), TMS 0.1?%
NMR reference standard, 1% in chloroform-d
NMR reference standard, 5% in acetone-d6 (99.9 atom % D)
NMR reference standard, 5% in chloroform-d (99.8 atom % D), TMS 2?%
One-piece assembly
optical grade, 98%
powder
powder (Granular), 98%
predominantly trans, 97%
purified by redistillation, ≥99.5%
purified by sublimation, ≥99.9%
purified by sublimation, ≥99%
purified by sublimation, 99%
puriss., ≥99.0% (GC)
purum, ≥98.0% (HPLC)
reagent grade, 97%
reagent grade, 98%
ReagentPlus?, ≥99%
ReagentPlus?, 99%
ReagentPlus?, thiophene free, ≥99%
Sample
sublimed grade, ≥99.5%
sublimed grade, ≥99.9% trace metals basis
sublimed grade, ≥99%
sublimed grade, 99.9% trace metals basis
sublimed grade, 99.99% trace metals basis
sublimed grade, 99%
suitable for scintillation, ≥99%
tech
Tech
tech. 80%
Tech. 90%
technical
technical grade
technical grade, ~70%
technical grade, 55%
technical grade, 70%
technical grade, 75%
technical grade, 80%
technical grade, 85%
technical grade, 90%
technical grade, 95%
technical grade, contains 1% hydroquinone as inhibitor
technical, ~70% (T)
technical, ~85% (HPLC)
technical, ~85% (T)
technical, ~90% (GC)
technical, ≥90%
technical, ≥90% (31P-NMR)
technical, ≥90% (HPLC)
technical, ≥90% (T)
technical, ≥95% (GC)
technical, ≥95% (HPLC)
technical, ≥95% (NT)
technical, ≥95% (T)
technical, ≥97.0% (GC)
technical, ≥97.0% (T)
technical, ≥98.0% (HPLC)
technical, 0.5-1.5?M in diethylene glycol diethyl ether
technical, 0.7?M±0.2?M in diethylene glycol diethyl ether
technical, 90%
zone-refined, purified by sublimation, ≥99.95%
zone-refined, purified by sublimation, ≥99%
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