Einige Fragmente, die die aktive Struktur von Medikamentenmolekülen verändern, können wie mechanische Teile in das Gerüst des Medikamentenmoleküls eingebaut werden, um die Wirkung des Medikaments zu verbessern und Nebenwirkungen zu verringern.
2-Chloro-1-methylpyridinium p-toluenosulfonate
CAS RN
7403-46-5
Appearance
White to almost white crystals
Purity
98% HPLC
4-(TRIFLUOROMETHYL)BENZOIC ANHYDRIDE
CAS RN
25753-16-6
Appearance
Off-white to white crystalline powder
Purity
≥98.0% GC
5,7-Dichloropyrazolo[1,5-a]pyrimidine
CAS RN
57489-77-7
Appearance
Pale yellow to white solid powder
Purity
98% HPLC
7-Amino-heptanoic acid ethyl ester hydrochloride
CAS RN
29840-65-1
Appearance
Purity
Di-tert-butyl N,N-diethylphosphoramidite
CAS RN
117924-33-1
Appearance
Yellow liquid
Purity
98% GC
METHYL 1-BENZYL-4-OXOPYRROLIDINE-3-CARBOXYLATE
CAS RN
329956-53-8
Appearance
Pale yellow viscous liquid
Purity
>95% HNMR
Methyl 1-methylpiperidine-4-carboxylate
CAS RN
1690-75-1
Appearance
Light yellow liquid
Purity
98% GC
CAS RN
101385-93-7
Appearance
White to off white powder
Purity
99% GC
(S)-2-(tert-butoxycarbonyl)pent-4-enoic acid...
CAS RN
221352-64-3
Appearance
White to off white solid
Purity
>97%
4-Hydroxy-6-(trifluoromethyl)pyrimidine
CAS RN
1546-78-7
Appearance
White solid
Purity
>98% HPLC
N-(2-Aminoethyl)maleimid trifluoroacetate salt
CAS RN
146474-00-2
Appearance
Off white solid
Purity
95% HPLC
N-Cbz-piperidine-2-carboxylic acid
CAS RN
84358-13-4
Appearance
White crystalline powder
Purity
98% HPLC
N-Cbz-piperidine-2-carboxylic acid
CAS RN
84358-13-4
Appearance
White crystalline powder
Purity
98% HPLC
O-(2,4-dinitrophenyl)hydroxylamine
CAS RN
33543-55-4
Appearance
White to off white solid
Purity
99% HPLC
CAS RN
16066-84-5
Appearance
Transparent liquid or white crystal
Purity
>98.0%(GC)
2-Methylpropylhydrazine hydrochloride
CAS RN
237064-47-0
Appearance
White solid
Purity
98%-103% T
6-Chloropyrimidine-2,4-diamine
CAS RN
156-83-2
Appearance
Off white solid powder
Purity
98%
CAS RN
5415-94-1
Appearance
White solid powder
Purity
97% HNMR
MPCN 4-Methoxy-2-oxo-1,2-dihydro-pyridine-3-carbonitrile
CAS RN
21642-98-8
Appearance
Pale yellow crystalline powder
Purity
≥99%HPLC
CAS RN
39546-32-2
Appearance
White or almost white crystalline powder
Purity
98% HPLC
1-Benzylpyrrolidin-3-one,hydrochloride
CAS RN
1012-01-7
Appearance
Off white to off white powder
Purity
>98%(HPLC)
1-N-ethoxycarbonyl-3-pyrrolidone
CAS RN
14891-10-2
Appearance
Pale yellow to colorless transparent liquid
Purity
≥98%
CAS RN
82321-04-8
Appearance
Yellow powder
Purity
98,10%
2-Bromo-1,3,5-triisopropylbenzene
CAS RN
21524-34-5
Appearance
Colorless to yellowish liquid
Purity
97% GC
2-Fluoro-6-(trifluoromethyl)benzoic Anhydride
CAS RN
2118332-08-2
Appearance
Purity
CAS RN
19889-77-1
Appearance
White solid
Purity
>97% HNMR
3-Chlor-Benzamidine hydrochloride
CAS RN
24095-60-1
Appearance
White crystalline powder
Purity
98% HPLC
D-2-amino-3-(pyridin-3-yl)propanoic acid dihydrochloride
CAS RN
93960-21-5
Appearance
Colorless to yellowish powder
Purity
>99.0% HPLC
Methyl 1-Boc-piperidine-3-carboxylate
CAS RN
148763-41-1
Appearance
Off white to light yellow powder
Purity
98% GC
N-(TERT-BUTYL)-2-CHLOROACETAMIDE
CAS RN
15678-99-6
Appearance
White to almost white crystalline powder
Purity
≥98% HPLC
1,4-Benzodioxane-2-carboxylic acid
CAS RN
3663-80-7
Appearance
White to off-white powder
Purity
≥98% GC
2,4-Dimethoxy-4-hydroxyacetophenone
CAS RN
41351-30-8
Appearance
Pale yellow to white solid powder
Purity
98% HPLC
3-Amino-4-pyrazolecarbonitrile
CAS RN
16617-46-2
Appearance
White to almost white or light yellow solid
Purity
≥98% HPLC
CAS RN
1527-89-5
Appearance
White crystal or colorless liquid
Purity
≥98%
CAS RN
54247-27-7
Appearance
Colorless to light yellow transparent liquid
Purity
≥98% GC
Diphenylammonium Trifluoromethanesulfonate
CAS RN
164411-06-7
Appearance
Purity
N,N'-Di-tert-butoxycarbonyl-L-histidine
CAS RN
20866-46-0
Appearance
White solid
Purity
N-(Benzyloxycarbonyl)-2-aminoacetonitrile
CAS RN
3589-41-1
Appearance
Pale yellow to white solid powder
Purity
98% HPLC
CAS RN
75178-96-0
Appearance
White solid or colorless liquid
Purity
97% GC
N-Boc-imino-(triphenyl)phosphorane
CAS RN
68014-21-1
Appearance
White crystal
Purity
98% HPLC
CAS RN
22509-74-6
Appearance
Off white to white crystalline powder
Purity
97% HPLC
CAS RN
5806-90-6
Appearance
Pale yellow to colorless liquid
Purity
>95%(GC, HNMR)
O-diphenylphosphinylhydroxylamine
CAS RN
72804-96-7
Appearance
White powder
Purity
90% HPLC
P-nitrophenylhydrazine hydrochloride
CAS RN
636-99-7
Appearance
Light brown powdery solid
Purity
>98%(HPLC, HNMR)
CAS RN
76-83-5
Appearance
Off white to yellowish crystalline powder
Purity
98% HPLC
CAS RN
102029-44-7
Appearance
Off white solid
Purity
>98%
1-(4-(methylamino)phenyl)ethanone
CAS RN
17687-47-7
Appearance
Pale yellow powder
Purity
97% HPLC
1-(4-nitrophenyl)sulfonylpiperidin-4-one
CAS RN
924869-20-5
Appearance
Pale yellow solid
Purity
>98%(HPLC)
1-(Tert-butoxycarbonyl)-2-pyrrolidinone
CAS RN
85909-08-6
Appearance
Yellowish to colorless solid crystal
Purity
≥98%
CAS RN
103057-44-9
Appearance
White powder
Purity
97% GC
1-Boc-4-[methoxy(methyl)carbamoyl]piperidine
CAS RN
139290-70-3
Appearance
White solid
Purity
98.7% HPLC
1-cyclohexyl-1H-pyrrole-2,5-dione
CAS RN
1631-25-0
Appearance
White to off white solid
Purity
>98%
2,2-dimethyl-N-(4-oxo-1,7-dihydropyrrolo[2,3-d]pyrimidin-2-y...
CAS RN
137281-08-4
Appearance
Yellowish brown solid powder
Purity
>95.0%(HPLC)
2-Amino-1,3-thiazole-4-carboxylate
CAS RN
118452-04-3
Appearance
Off yellow to white powder
Purity
98% HPLC
2-Bromopyridine-5-carbaldehyde
CAS RN
149806-06-4
Appearance
Off white to yellow powder
Purity
98% HPLC
2-Chloropyridine-5-carbaldehyde
CAS RN
23100-12-1
Appearance
Off white to white solid
Purity
98% HPLC
2-Ethoxybenzamidine hydrochloride
CAS RN
18637-00-8
Appearance
White to off white powder
Purity
98% HPLC
2-Methyl-1-(4-methylphenyl)sulfonylimidazole
CAS RN
86181-71-7
Appearance
White crystalline powder
Purity
98%HPLC
DMEAD, Bis(2-methoxyethyl) diazene-1,2-dicarboxylate
CAS RN
940868-64-4
Appearance
Yellow Powder
Purity
≥98% HPLC
CAS RN
14273-92-8
Appearance
Colorless Transparent Liquid
Purity
97.4% GC
N-(4-Chloro-7H-pyrrolo[2,3-d]pyrimidin-2-yl)-2,2-dimethylpro...
CAS RN
149765-15-1
Appearance
Powder grey crystalline powder
Purity
>98 HPLC
N-boc-ethylenediamine hydrochloride
CAS RN
79513-35-2
Appearance
White powder
Purity
98 %-103%(AT)
Nalpha-Fmoc-L-lysine hydrochloride
CAS RN
139262-23-0
Appearance
Off white to white solid
Purity
98% HPLC
Pyridine-2,6-dicarboximidamide Dihydrochloride
CAS RN
1394382-56-9
Appearance
White to off-white powder
Purity
98~102% T
Tetraethylene Glycol Monobenzyl Ether
CAS RN
86259-87-2
Appearance
Pale yellow clear liquid
Purity
95% GC
Triphenyl(2-pyridylmethyl)phosphonium chloride hydrochloride
CAS RN
99662-46-1
Appearance
Off-white to white powder
Purity
Titration: 102.3%
CAS RN
617-37-8
Appearance
colorless liquid
Purity
>95.0% H-NMR
1-(2,3-Dihydro-1,4-benzodioxin-2-ylcarbonyl)piperazine...
CAS RN
70918-74-0
Appearance
White to almost white solid
Purity
≥97.0%
1-(4-methoxybenzyl)hydrazine dihydrochloride
CAS RN
412327-07-2
Appearance
Off white to yellowish solid powder
Purity
97% HPLC
1-(6-Aminohexyl)-1H-pyrrole-2,5-dione 2,2,2-trifluoroacetate
CAS RN
731862-92-3
Appearance
White solid
Purity
99,70%
1-(cyanoMethyl)pyrrolidinium trifluoroMethanesulfonate
CAS RN
573987-48-1
Appearance
White to off-white powder
Purity
≥98%
1-Ethyl-3-methylimidazolium ethylsulfate
CAS RN
342573-75-5
Appearance
White to off white solid
Purity
98% HPLC
2,4,6-Triphenylpyrylium tetrafluoroborate
CAS RN
448-61-3
Appearance
Yellow powder
Purity
98% HPLC
2-(1,3-Dioxoisoindolin-2-yl)ethanesulfonic acid
CAS RN
4443-24-7
Appearance
White crystalline powder
Purity
>98% HPLC
2-Methoxyphenylhydrazine hydrochloride
CAS RN
57396-67-5
Appearance
Off white to pink powder
Purity
≥98.0% HPLC
CAS RN
5570-77-4
Appearance
Pale yellow liquid
Purity
98% GC
6-maleimidohexanoic acid pentafluorophenyl ester
CAS RN
692739-25-6
Appearance
White solid
Purity
99,60%
9-Fluorenylmethyl N-hydroxycarbamate
CAS RN
190656-01-0
Appearance
White to off white solid
Purity
98% HPLC
Benzyl 3-pyrroline-1-carboxylate
CAS RN
31970-04-4
Appearance
Yellow liquid or yellow to almost white solid
Purity
98% GC
CAS RN
30379-58-9
Appearance
Colorless Transparent Liquid
Purity
HPLC>96%,GC>97%
Benzyl N-(hydrazinylmethylidene)carbamate
CAS RN
16706-54-0
Appearance
White crystalline powder
Purity
>98%HPLC
CAS RN
2449-05-0
Appearance
Orange crystalline powder
Purity
98% HPLC
Diisopropyl 3,3-dimethoxycyclobutane-1,1-dicarboxylate
CAS RN
115118-68-8
Appearance
Purity
≥98%
Dimethyl 1,3-dihydro-3-oxoisobenzofuran-1-yl-1-phosphonate
CAS RN
61260-15-9
Appearance
White crystal or powder
Purity
98%HPLC
CAS RN
2424-92-2
Appearance
White to off-white powder
Purity
≥99% HPLC
CAS RN
3332-29-4
Appearance
White or yellowish crystals
Purity
98%-103(AT)
Ethyl iminobenzoate hydrochloride
CAS RN
5333-86-8
Appearance
White crystalline powder
Purity
98%HPLC
CAS RN
185456-26-2
Appearance
White to off white solid
Purity
L-Alanine isopropyl ester hydrochloride
CAS RN
62062-65-1
Appearance
Off white to white crystalline powder
Purity
98%AT
Methyl 2,5-dioxo-2H-pyrrole-1(5H)-carboxylate
CAS RN
55750-48-6
Appearance
Off white to white crystalline powder
Purity
≥98%HPLC
N-(2-Aminoethyl)methacrylamide Hydrochloride
CAS RN
76259-32-0
Appearance
White to off-white powder
Purity
98-102%(T)
N-(4-Pyridyl)pyridinium chloride hydrochloride
CAS RN
5421-92-1
Appearance
Pale yellow solid
Purity
98%HPLC
N-(tert-Butoxycarbonyl)-1,4-phenylenediamine
CAS RN
71026-66-9
Appearance
Beige to brown crystalline powder
Purity
97% HPLC
N-(tert-Butoxycarbonyloxy)phthalimide
CAS RN
15263-20-4
Appearance
White to off white solid
Purity
≥95% HPLC
CAS RN
170384-29-9
Appearance
Off-white to white crystalline powder
Purity
≥98.0% GC
CAS RN
29976-53-2
Appearance
colorless liquid
Purity
>97% T
N-Methoxy-n-methyltrifluoroacetamide
CAS RN
104863-67-4
Appearance
Colorless Transparent Liquid
Purity
≥98%GC
CAS RN
2398-81-4
Appearance
White to almost white or light yellow powder
Purity
≥98% HPLC
O-(4-Nitrobenzyl)hydroxylamine hydrochloride
CAS RN
2086-26-2
Appearance
Off white to yellowish crystalline powder
Purity
98% HPLC
O-tert-butylhydroxylamine hydrochloride
CAS RN
39684-28-1
Appearance
Off white to light pink solid
Purity
98% T
CAS RN
27988-97-2
Appearance
colorless liquid
Purity
0.45ML
Tert-butyl N-(2-acetamidoethyl)carbamate
CAS RN
207129-09-7
Appearance
Off white to white solid
Purity
99% GC
CAS RN
3871-20-3
Appearance
Light yellow solid
Purity
≥98% HPLC
(3aR,4S,7R,7aS) 4,7-Methano-1H-isoindole-1,3(2H)-dione
CAS RN
14805-29-9
Appearance
Purity
≥98%
(4-Chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate
CAS RN
1146629-75-5
Appearance
Off white to white solid powder
Purity
98% HPLC
1-(Diphenylmethyl)-3-hydroxyazetidine
CAS RN
18621-17-5
Appearance
White solid
Purity
>98% HPLC
1-Aminopyrrolidine-2,5-dione,hydrochloride
CAS RN
108906-15-6
Appearance
White to off white powder
Purity
>98.0%(T)
CAS RN
775-15-5
Appearance
Pale yellow to colorless transparent liquid
Purity
>98%(GC)
CAS RN
775-15-5
Appearance
Pale yellow to colorless transparent liquid
Purity
98.0%(HPLC)
CAS RN
17766-28-8
Appearance
Pale yellow to colorless solid
Purity
98% GC
2,2-DIETHOXYETHYLPHOSPHONIC ACID DIETHYL ESTER
CAS RN
7598-61-0
Appearance
Pale yellow to colorless transparent liquid
Purity
98.0%(GC)
CAS RN
961-38-6
Appearance
White solid powder
Purity
98%HPLC
2,4,6-trimethylbenzenesulfonyl hydrazide
CAS RN
16182-15-3
Appearance
White off white crystalline powder
Purity
97%AT
2,5-dioxopyrrolidin-1-yl octanoate
CAS RN
14464-30-3
Appearance
White solid
Purity
>98%
2,6-Dichloro-4-(trifluoromethyl)aniline
CAS RN
24279-39-8
Appearance
Off white solid to yellowish liquid
Purity
99%HPLC
2-(bis(2-hydroxyethyl)amino)acetic acid
CAS RN
150-25-4
Appearance
Off white solid
Purity
2-Chloroethylamine hydrochloride
CAS RN
870-24-6
Appearance
Off white to white crystals
Purity
98%-101%
2-Fluoro-5-[(3-oxo-1(3H)-isobenzofuranylidene)methyl]-benzon...
CAS RN
763114-25-6
Appearance
Yellow to white powder
Purity
>98% HPLC
CAS RN
931-19-1
Appearance
White to brown solid or colorless to brown liquid
Purity
≥97% HPLC
3,8,11-Trioxa-5-azatridecan-13-oic acid
CAS RN
108466-89-3
Appearance
Off white to white solid powder
Purity
98% HPLC
3-Fluorobenzamidine hydrochloride
CAS RN
75207-72-6
Appearance
White powder
Purity
98% HPLC
3-Hydroxypyrrolidine hydrochloride
CAS RN
86070-82-8
Appearance
Off white solid
Purity
≥97%
CAS RN
20265-37-6
Appearance
Yellow powder
Purity
99% HPLC
CAS RN
16375-88-5
Appearance
Off white solid
Purity
99% HPLC
4-Amino-5-pyrimidinecarbonitrile
CAS RN
16357-69-0
Appearance
Off white to white solid powder
Purity
>97% HPLC
4-Fluorophenylhydrazine hydrochloride
CAS RN
823-85-8
Appearance
White to off white solid
Purity
98%HPLC
CAS RN
1594-57-6
Appearance
White crystalline powder
Purity
≥99%HPLC
6,7-Dimethoxy-3,4-dihydroquinazoline-4-one
CAS RN
13794-72-4
Appearance
Off white to white solid powder
Purity
>98% HPLC
6-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)hexanehydrazide...
CAS RN
175290-73-0
Appearance
White powder
Purity
98% HPLC
DCAD Bis(4-chlorobenzyl) azodicarboxylate
CAS RN
916320-82-6
Appearance
Orange solid
Purity
≥98.0%HPLC
Di-tert-Butyl azodicarboxylate
CAS RN
870-50-8
Appearance
Yellow crystalline powder
Purity
98%GC
EOPC Ethyl N-Boc-4-Oxopyrrolidine-3-carboxylate
CAS RN
146256-98-6
Appearance
Off white solid
Purity
98% HPLC
Ethyl (hydroxyimino)cyanoacetate potassium salt
CAS RN
158014-03-0
Appearance
Yellow powdery solid
Purity
98.6% HPLC
Methyl 4-aminobutyrate hydrochloride
CAS RN
13031-60-2
Appearance
White solid
Purity
≥98%(AT)
CAS RN
78191-00-1
Appearance
Colorless Transparent Liquid
Purity
98% GC
CAS RN
930-88-1
Appearance
Off white to white powder
Purity
98% HPLC
Phenolphthalein monophosphate dicyclohexylammonium salt
CAS RN
14815-59-9
Appearance
Purity
≥95%
CAS RN
1452-77-3
Appearance
White crystalline powder
Purity
>98% HPLC
tert-Butyl (2-(benzylamino)ethyl)carbamate
CAS RN
174799-52-1
Appearance
Colorless or light yellow liquid
Purity
>98% HPLC
tert-butyl 4-(4-nitrobenzyl)piperazine-1-carboxylate
CAS RN
130636-61-2
Appearance
Yellow solid
Purity
>99%
CAS RN
41239-10-5
Appearance
Colorless to light yellow liquid
Purity
≥97.0%
CAS RN
600-23-7
Appearance
colorless liquid
Purity
>95.0% H-NMR
(S)-(-)-1-(4-Cyanophenyl)ethylamine
CAS RN
36244-70-9
Appearance
Purity
>97.0%(HPLC)
1,13-DIAMINO-4,7,10-TRIOXATRIDECANE
CAS RN
4246-51-9
Appearance
Pale yellow to colorless transparent liquid
Purity
97% GC
1-(9H-FUOREN-9-YL)-3-OXO-2,7,10-TRIOXA-4-AZADODECAN-12-OIC...
CAS RN
166108-71-0
Appearance
Purity
1-(Cyanomethyl)piperidinium TetrafluoroborateTetramethyl...
CAS RN
434937-12-9
Appearance
Purity
1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazole
CAS RN
449758-17-2
Appearance
Colorless Transparent Liquid
Purity
>95% GC
1-Boc-piperidine-2-carboxamide
CAS RN
388077-74-5
Appearance
White or almost white crystalline powder
Purity
97% GC
CAS RN
697-73-4
Appearance
Pale yellow to colorless liquid or solid
Purity
99%
2-(2-bromoethyl)isoindoline-1,3-dione
CAS RN
574-98-1
Appearance
White to off white solid
Purity
>98%
CAS RN
61439-59-6
Appearance
White solid
Purity
>97% T
2-(Dimethylamino)ethanol hydrochloride (1:1)
CAS RN
2498-25-1
Appearance
Off white solid particles
Purity
98% T
2-Aminothiazole-4-carboxylic Acid Ethyl Ester
CAS RN
5398-36-7
Appearance
Pale yellow to off white powder
Purity
98%HPLC
2-Phthalimidoethane sulfonamide
CAS RN
4443-23-6
Appearance
Off white to white powder
Purity
97% HPLC
2-Propenoic acid, 3-bromo-2-methyl-, ethyl ester, (2E)-
CAS RN
38104-06-2
Appearance
Colorless to yellowish liquid
Purity
>98% HPLC
3,5-Bis(trifluoromethyl)benzeneboronic acid
CAS RN
73852-19-4
Appearance
Purity
3-(4-bromophenyl)propanoic acid
CAS RN
1643-30-7
Appearance
White powder
Purity
≥99%
CAS RN
7356-60-7
Appearance
White powder
Purity
98%HPLC
3-aminopyridin-1-ium-1-olate hydrochloride
CAS RN
65600-69-3
Appearance
Pale yellow solid powder
Purity
99.4% HPLC
CAS RN
618-49-5
Appearance
Off white powder
Purity
99.7% HPLC
CAS RN
40499-83-0
Appearance
Pale yellow transparent liquid or off-white solid
Purity
98% HPLC
CAS RN
2645-22-9
Appearance
Off white to yellow solid
Purity
98%HPLC
CAS RN
623-04-1
Appearance
Pale yellow to almost white crystalline powder
Purity
98% HPLC
CAS RN
15115-60-3
Appearance
White to off white solid
Purity
≥ 98%HPLC
5,6,7,8-Tetrahydroquinazolin-4-ol
CAS RN
19178-19-9
Appearance
Off white to white solid powder
Purity
>98% HPLC
7-Bromo-3,4-dihydroquinazolin-4-one
CAS RN
194851-16-6
Appearance
Off white to white solid powder
Purity
>98% HPLC
CAS RN
31374-18-2
Appearance
Off white to white solid powder
Purity
>98% HPLC
CAS RN
1866-15-5
Appearance
Off white to white crystalline powder
Purity
98%AT
CAS RN
3426-71-9
Appearance
Off white to white powder
Purity
98% HPLC
CAS RN
28170-07-2
Appearance
Colorless to yellowish liquid
Purity
95%GC
CAS RN
477844-84-1
Appearance
White powder
Purity
>98.0% HPLC
CHLOROGLYOXYLIC ACID METHYL ESTER
CAS RN
5781-53-3
Appearance
Pale yellow transparent liquid
Purity
>97% T
Cyclohexylhydrazine hydrochloride
CAS RN
24214-73-1
Appearance
White crystal
Purity
99% T
CAS RN
1034-39-5
Appearance
Off white crystal or light yellow powder
Purity
97% T
CAS RN
2404-75-3
Appearance
colorless liquid
Purity
>99% GC
CAS RN
10489-74-4
Appearance
White crystal
Purity
99,70%
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