Product Index

1-(2,3-dihydrobenzofuran-5-yl)-N-methylpropan-2-amine,monohydrochloride

Catalog No.: AA01EOZ4

CAS No.:2748590-04-5 MDL No.:

MF: C12H18ClNO MW: 227.7304

Pricing and Availability

2-(2-chlorophenyl)-1-(1-(4-hydroxypentyl)-1H-indol-3-yl)ethan-1-one-2,4,5,6,7-d5

Catalog No.: AA01EOZE

CAS No.:2747915-98-4 MDL No.:

MF: C21H17ClD5NO2 MW: 360.8887

Pricing and Availability

(1-(4-hydroxypentyl)-1H-indol-3-yl)(4-methoxynaphthalen-1-yl)methanone

Catalog No.: AA01EP2J

CAS No.:2748622-62-8 MDL No.:

MF: C25H25NO3 MW: 387.4709

Pricing and Availability

5-(3-(4-methoxy-1-naphthoyl)-1H-indol-1-yl-2,4,5,6,7-d5)-pentanoicacid

Catalog No.: AA01EP2M

CAS No.:2749394-82-7 MDL No.:

MF: C25H18D5NO4 MW: 406.4852

Pricing and Availability

(1-(5-hydroxypentyl)-1H-indol-3-yl-2,4,5,6,7-d5)(4-methoxynaphthalen-1-yl)methanone

Catalog No.: AA01EP32

CAS No.:2748469-56-7 MDL No.:

MF: C25H20D5NO3 MW: 392.5017

Pricing and Availability

1-(4-hydroxy-3-methoxyphenyl)-2-(pyrrolidin-1-yl)pentan-1-one,monohydrochloride

Catalog No.: AA01EP35

CAS No.:2748590-34-1 MDL No.:

MF: C16H24ClNO3 MW: 313.8197

Pricing and Availability

(1-(5-fluoropentyl)-1H-indol-3-yl)(naphthalen-2-yl)methanone

Catalog No.: AA01EP63

CAS No.:2365471-27-6 MDL No.:

MF: C24H22FNO MW: 359.4360

Pricing and Availability

N,α-dimethyl-6-benzofuranethanamine,monohydrochloride

Catalog No.: AA01EP6R

CAS No.:2731011-08-6 MDL No.: MFCD34562701

MF: C12H16ClNO MW: 225.7145

Pricing and Availability

1-Fluoro-3-isobutoxy-2-nitrobenzene

Catalog No.: AA01ER3X

CAS No.:1233955-76-4 MDL No.: MFCD16839081

MF: C10H12FNO3 MW: 213.2056

Pricing and Availability

4-Isobutoxy-3-methoxybenzonitrile

Catalog No.: AA01EWZJ

CAS No.:713103-62-9 MDL No.: MFCD05996066

MF: C12H15NO2 MW: 205.2530

Pricing and Availability

2-Amino-5-cyclopropylbenzoic acid

Catalog No.: AA01F20R

CAS No.:68701-47-3 MDL No.: MFCD06802840

MF: C10H11NO2 MW: 177.1998

Pricing and Availability

methyl 1-(4-bromo-3-fluorobenzyl)azetidine-3-carboxylate

Catalog No.: AA01F7JJ

CAS No.:950691-66-4 MDL No.: MFCD30478303

MF: C12H13BrFNO2 MW: 302.1395

Pricing and Availability

3-(Cyclopropylmethoxy)picolinic acid

Catalog No.: AA01F9E2

CAS No.:1250879-43-6 MDL No.: MFCD14653070

MF: C10H11NO3 MW: 193.1992

Pricing and Availability

(4-(5-Methoxypyridin-3-yl)phenyl)methanol

Catalog No.: AA01FC8W

CAS No.:1349708-90-2 MDL No.: MFCD20441474

MF: C13H13NO2 MW: 215.2478

Pricing and Availability

(3-(6-Methylpyridin-2-yl)phenyl)methanol

Catalog No.: AA01FCKL

CAS No.:1349716-62-6 MDL No.: MFCD20233062

MF: C13H13NO MW: 199.2484

Pricing and Availability

(3-(3-Fluoropyridin-2-yl)phenyl)methanol

Catalog No.: AA01FCKE

CAS No.:1349708-61-7 MDL No.: MFCD20233047

MF: C12H10FNO MW: 203.2123

Pricing and Availability

(4-(2-Fluoropyridin-4-yl)phenyl)methanol

Catalog No.: AA01FCKI

CAS No.:1349716-07-9 MDL No.: MFCD20441481

MF: C12H10FNO MW: 203.2123

Pricing and Availability

(3-(4-Methylpyridin-2-yl)phenyl)methanol

Catalog No.: AA01FCKY

CAS No.:1349719-03-4 MDL No.: MFCD20233060

MF: C13H13NO MW: 199.2484

Pricing and Availability

(4-bromo-2-methoxyphenyl)methanamine hydrochloride

Catalog No.: AA01FILV

CAS No.:2230802-60-3 MDL No.: MFCD11045220

MF: C8H11BrClNO MW: 252.5360

Pricing and Availability

Methyl 3-(pyridin-2-yl)benzoate

Catalog No.: AA01FS3K

CAS No.:98061-20-2 MDL No.: MFCD06801883

MF: C13H11NO2 MW: 213.2319

Pricing and Availability

6-Chloro-1-methyl-4-oxo-1,4-dihydroquinoline-2-carboxylic acid

Catalog No.: AA01FSGV

CAS No.:1267633-49-7 MDL No.: MFCD18785403

MF: C11H8ClNO3 MW: 237.6391

Pricing and Availability

2,7-Dichloro-6-methoxybenzo[d]thiazole

Catalog No.: AA01FSJB

CAS No.:1784096-83-8 MDL No.: MFCD28968767

MF: C8H5Cl2NOS MW: 234.1024

Pricing and Availability

5-Cyclohexyl-3-methyl-1h-pyrrole-2-carboxylic acid

Catalog No.: AA01FSJ6

CAS No.:2091170-08-8 MDL No.:

MF: C12H17NO2 MW: 207.2689

Pricing and Availability

Carbamic acid, (5-hydroxypentyl)-, 2-(trimethylsilyl)ethyl ester

Catalog No.: AA01GBTQ

CAS No.:401601-01-2 MDL No.: MFCD30569371

MF: C11H25NO3Si MW: 247.4066

Pricing and Availability

Benzene, 4-ethenyl-1-methyl-2-nitro-

Catalog No.: AA01HHJ4

CAS No.:35921-01-8 MDL No.: MFCD23841231

MF: C9H9NO2 MW: 163.1733

Pricing and Availability

3-Morpholinone, 4-[(4-methoxyphenyl)methyl]-

Catalog No.: AA01HHTL

CAS No.:570398-19-5 MDL No.: MFCD16249965

MF: C12H15NO3 MW: 221.2524

Pricing and Availability

Benzenamine, 2-bromo-4-ethoxy-

Catalog No.: AA01HJM2

CAS No.:57279-72-8 MDL No.: MFCD12827965

MF: C8H10BrNO MW: 216.0751

Pricing and Availability

Benzenamine, 3,5-dibromo-4-ethoxy-

Catalog No.: AA01HW2I

CAS No.:52765-17-0 MDL No.: MFCD11647724

MF: C8H9Br2NO MW: 294.9712

Pricing and Availability

2-(2-Iodophenyl)acetamide

Catalog No.: AA01JK9E

CAS No.:195456-43-0 MDL No.: MFCD00099253

MF: C8H8INO MW: 261.0597

Pricing and Availability

Ethyl (4-bromo-2-cyanophenoxy)acetate

Catalog No.: AA01JKB9

CAS No.:328009-03-6 MDL No.: MFCD00454355

MF: C11H10BrNO3 MW: 284.1060

Pricing and Availability

3,6-Difluoro-2-methoxybenzamide

Catalog No.: AA01JKNX

CAS No.:1261439-98-8 MDL No.: MFCD18394893

MF: C8H7F2NO2 MW: 187.1435

Pricing and Availability

10-(Cbz-amino)decanoic acid

Catalog No.: AA01JMGN

CAS No.:195302-79-5 MDL No.: MFCD32263124

MF: C18H27NO4 MW: 321.4113

Pricing and Availability

(R)-N-(1,1,1-Trifluoropropan-2-yl)benzamide

Catalog No.: AA01KJW2

CAS No.:1998156-24-3 MDL No.:

MF: C10H10F3NO MW: 217.1877

Pricing and Availability

2-Chloro-3,4-dimethoxypyridine hydrochloride

Catalog No.: AA01KK2M

CAS No.:352534-78-2 MDL No.: MFCD03411871

MF: C7H9Cl2NO2 MW: 210.0579

Pricing and Availability

2-Amino-5-chlorobenzenesulfonicacidhydrochloride

Catalog No.: AA01KK4O

CAS No.:2368872-22-2 MDL No.:

MF: C6H7Cl2NO3S MW: 244.0957

Pricing and Availability

tert-Butyl2-(bromomethyl)-5-nitrobenzoate

Catalog No.: AA01KKAU

CAS No.:2442597-45-5 MDL No.: MFCD32214878

MF: C12H14BrNO4 MW: 316.1479

Pricing and Availability

Methyl3-(bromomethyl)isonicotinatehydrobromide

Catalog No.: AA01KKDR

CAS No.:2368871-68-3 MDL No.: MFCD31813578

MF: C8H9Br2NO2 MW: 310.9706

Pricing and Availability

6-Fluoro-8-methylchroman-4-amine

Catalog No.: AA01KKGM

CAS No.:1273650-72-8 MDL No.: MFCD18651346

MF: C10H12FNO MW: 181.2068

Pricing and Availability

3-(4-(3-(4-Chlorophenyl)-2-(3,4-difluorophenyl)-3-oxopropyl)phenyl)isoxazole-5-carboxylicacid

Catalog No.: AA01KKZ1

CAS No.:1373156-22-9 MDL No.:

MF: C25H16ClF2NO4 MW: 467.8486

Pricing and Availability

(S)-N-(1,1,1-Trifluoropropan-2-yl)benzamide

Catalog No.: AA01KL0P

CAS No.:881426-13-7 MDL No.:

MF: C10H10F3NO MW: 217.1877

Pricing and Availability

N-(4-Formyl-3-(trifluoromethyl)phenyl)acetamide

Catalog No.: AA01KL9K

CAS No.:2442597-68-2 MDL No.: MFCD32644587

MF: C10H8F3NO2 MW: 231.1712

Pricing and Availability

TRPC6-PAM-C20

Catalog No.: AA01LNG4

CAS No.:667427-75-0 MDL No.: MFCD03661520

MF: C22H21NO4 MW: 363.4064

Pricing and Availability

Fluorescein mono-beta-D-N-acetylglucosamine

Catalog No.: AA01LRBO

CAS No.:148806-95-5 MDL No.:

MF: C28H25NO10 MW: 535.4988

Pricing and Availability

(4-Chloro-6-methoxy-3-quinolyl)-(p-tolyl)methanone

Catalog No.: AA01M9PA

CAS No.:1351792-84-1 MDL No.: MFCD20754708

MF: C18H14ClNO2 MW: 311.7623

Pricing and Availability

NHPI-PEG4-C2-Pfp ester

Catalog No.: AA01N768

CAS No.:2101206-46-4 MDL No.:

MF: C25H24F5NO9 MW: 577.4514

Pricing and Availability

5-Ethoxy-2-nitrobenzaldehyde

Catalog No.: AA01NUNA

CAS No.:109134-05-6 MDL No.: MFCD17170878

MF: C9H9NO4 MW: 195.1721

Pricing and Availability

2-(4-Bromo-2-fluoro-phenyl)-1-morpholin-4-yl-ethanone

Catalog No.: AA01NYS7

CAS No.:1092563-30-8 MDL No.: MFCD28403614

MF: C12H13BrFNO2 MW: 302.1395

Pricing and Availability

2-(4-Bromo-2-fluoro-phenyl)-1-pyrrolidin-1-yl-ethanone

Catalog No.: AA01NZ6F

CAS No.:1022931-92-5 MDL No.: MFCD25954354

MF: C12H13BrFNO MW: 286.1401

Pricing and Availability

Pyridine, 4-ethenyl-2-methoxy-

Catalog No.: AA01OPYP

CAS No.:848951-16-6 MDL No.: MFCD11100695

MF: C8H9NO MW: 135.1632

Pricing and Availability

2-Methoxy-4-(3-methylbutoxy)aniline

Catalog No.: AA01OZ4L

CAS No.:1341767-42-7 MDL No.: MFCD18861376

MF: C12H19NO2 MW: 209.2848

Pricing and Availability

N-{[4-(methylsulfanyl)phenyl]methyl}oxetan-3-amine

Catalog No.: AA01P007

CAS No.:1507979-06-7 MDL No.: MFCD23839007

MF: C11H15NOS MW: 209.3079

Pricing and Availability

2-Methoxy-4-propoxyaniline

Catalog No.: AA01P02I

CAS No.:1341151-11-8 MDL No.: MFCD18861406

MF: C10H15NO2 MW: 181.2316

Pricing and Availability

[1,1′-Biphenyl]-3-carboxamide, 4,4′-difluoro-

Catalog No.: AA01P4XL

CAS No.:1214380-94-5 MDL No.: MFCD14699176

MF: C13H9F2NO MW: 233.2135

Pricing and Availability

2-Methoxy-4-(pentyloxy)aniline

Catalog No.: AA01P608

CAS No.:1312523-48-0 MDL No.: MFCD18861411

MF: C12H19NO2 MW: 209.2848

Pricing and Availability

2-Methoxy-4-(3-methoxypropoxy)aniline

Catalog No.: AA01P70G

CAS No.:1341717-52-9 MDL No.: MFCD18861416

MF: C11H17NO3 MW: 211.2576

Pricing and Availability

2-Methoxy-4-((tetrahydro-2H-pyran-4-yl)oxy)aniline

Catalog No.: AA01P8UG

CAS No.:1097921-23-7 MDL No.: MFCD18861421

MF: C12H17NO3 MW: 223.2683

Pricing and Availability

4-(Cyclohexyloxy)-2-methoxyaniline

Catalog No.: AA01PCQ0

CAS No.:1341141-37-4 MDL No.: MFCD18861362

MF: C13H19NO2 MW: 221.2955

Pricing and Availability

2-((Tetrahydro-2H-pyran-4-yl)oxy)benzenesulfonamide

Catalog No.: AA01PCZB

CAS No.:2743759-75-1 MDL No.: MFCD32690721

MF: C11H15NO4S MW: 257.3061

Pricing and Availability

Benzenemethanamine, 3-chloro-α-ethyl-5-methoxy-

Catalog No.: AA01PDO1

CAS No.:1273608-71-1 MDL No.: MFCD18647300

MF: C10H14ClNO MW: 199.6773

Pricing and Availability

N-[1-(4-methanesulfonylphenyl)ethyl]cyclobutanamine

Catalog No.: AA01PHT4

CAS No.:1455186-32-9 MDL No.: MFCD17064060

MF: C13H19NO2S MW: 253.3605

Pricing and Availability

Benzonitrile, 3-bromo-4-[(2-methoxyethoxy)methoxy]-

Catalog No.: AA01PKMF

CAS No.:219671-91-7 MDL No.: MFCD25961106

MF: C11H12BrNO3 MW: 286.1219

Pricing and Availability

Benzamide, 2-bromo-N,N-dimethyl-6-(trifluoromethyl)-

Catalog No.: AA01PU01

CAS No.:1369835-95-9 MDL No.: MFCD29094120

MF: C10H9BrF3NO MW: 296.0838

Pricing and Availability

Acetamide, 2-chloro-N-[2-(2-chlorophenyl)ethyl]-

Catalog No.: AA01Q373

CAS No.:34162-14-6 MDL No.: MFCD19353214

MF: C10H11Cl2NO MW: 232.1064

Pricing and Availability

(3-(Benzyloxy)-4-isobutoxyphenyl)methanamine

Catalog No.: AA01Q5Q2

CAS No.:1246458-30-9 MDL No.: MFCD32877191

MF: C18H23NO2 MW: 285.3807

Pricing and Availability

[1,1′-Biphenyl]-2-amine, 5-methoxy-4′-methyl-

Catalog No.: AA01Q5UP

CAS No.:1414280-07-1 MDL No.: MFCD31717305

MF: C14H15NO MW: 213.2750

Pricing and Availability

Benzenemethanamine, N-cyclobutyl-4-methoxy-3-methyl-

Catalog No.: AA01Q7KF

CAS No.:1249454-73-6 MDL No.: MFCD16746666

MF: C13H19NO MW: 205.2961

Pricing and Availability

Benzeneacetamide, 4-methoxy-3-(phenylmethoxy)-

Catalog No.: AA01Q8M0

CAS No.:71146-77-5 MDL No.: MFCD00266445

MF: C16H17NO3 MW: 271.3111

Pricing and Availability

4-Pyridinecarboxylic acid, 5-fluoro-2-phenyl-

Catalog No.: AA01QAV7

CAS No.:885588-18-1 MDL No.: MFCD14701986

MF: C12H8FNO2 MW: 217.1958

Pricing and Availability

Carbamic acid, N-(cyclopropylsulfonyl)-N-methyl-, 1,1-dimethylethyl ester

Catalog No.: AA01QBC7

CAS No.:1799920-13-0 MDL No.: MFCD34469018

MF: C9H17NO4S MW: 235.3006

Pricing and Availability

Benzo[b]thiophene-2-carboxamide, 5-bromo-N-cyclopropyl-

Catalog No.: AA01QCU7

CAS No.:439108-13-1 MDL No.: MFCD03012929

MF: C12H10BrNOS MW: 296.1829

Pricing and Availability

1-Pyrrolidinecarboxylic acid, 3-hydroxy-, 2-propen-1-yl ester, (3S)-

Catalog No.: AA01QMBL

CAS No.:135920-64-8 MDL No.: MFCD21734663

MF: C8H13NO3 MW: 171.1937

Pricing and Availability

Benzeneacetamide, 5-bromo-2-iodo-N,N-dimethyl-

Catalog No.: AA01QTFZ

CAS No.:702641-02-9 MDL No.: MFCD27665697

MF: C10H11BrINO MW: 368.0089

Pricing and Availability

Pyridine, 2-bromo-6-iodo-3-[(4-methoxyphenyl)methoxy]-

Catalog No.: AA01QWNO

CAS No.:1310949-57-5 MDL No.: MFCD28675351

MF: C13H11BrINO2 MW: 420.0404

Pricing and Availability

Benzene, 1-bromo-2-(1-methylethoxy)-4-nitro-

Catalog No.: AA01QZEK

CAS No.:423165-35-9 MDL No.: MFCD27950680

MF: C9H10BrNO3 MW: 260.0846

Pricing and Availability

Benzonitrile, 3-chloro-4-(cyclopropylmethoxy)-

Catalog No.: AA01RHLS

CAS No.:1035217-31-2 MDL No.: MFCD14656273

MF: C11H10ClNO MW: 207.6562

Pricing and Availability

Carbamic acid, N-[2-[2-[2-[[(4-methylphenyl)sulfonyl]oxy]ethoxy]ethoxy]ethyl]-, phenylmethyl ester

Catalog No.: AA01SITB

CAS No.:2098983-15-2 MDL No.: MFCD34179126

MF: C21H27NO7S MW: 437.5066

Pricing and Availability

1H-Indol-5-ol, 1-(2-phenylethyl)-

Catalog No.: AA01SKRZ

CAS No.:170147-80-5 MDL No.: MFCD32902362

MF: C16H15NO MW: 237.2964

Pricing and Availability

Morpholine, 4-[(3-bromo-4-methoxyphenyl)methyl]-

Catalog No.: AA01SMHL

CAS No.:886-48-6 MDL No.: MFCD01955919

MF: C12H16BrNO2 MW: 286.1649

Pricing and Availability

4-Nitrophenyl oxetan-3-yl carbonate

Catalog No.: AA01SZ71

CAS No.:1134113-37-3 MDL No.: MFCD28403505

MF: C10H9NO6 MW: 239.1816

Pricing and Availability

4-Chloro-N-methoxy-2,N-dimethyl-benzamide

Catalog No.: AA01T1PI

CAS No.:252199-39-6 MDL No.: MFCD31716704

MF: C10H12ClNO2 MW: 213.6608

Pricing and Availability

Fmoc-(S)-2-amino-5-(4-fluorophenyl)pentanoic acid

Catalog No.: AA01V3KP

CAS No.:2349948-37-2 MDL No.:

MF: C26H24FNO4 MW: 433.4715

Pricing and Availability

O-(4-Methoxyphenyl)-L-serine

Catalog No.: AA01V3QY

CAS No.:1502644-64-5 MDL No.:

MF: C10H13NO4 MW: 211.2145

Pricing and Availability

(1S,3S)-3-(Fmoc-amino)cyclopentanecarboxylic acid

Catalog No.: AA01V40K

CAS No.:872174-19-1 MDL No.:

MF: C21H21NO4 MW: 351.3957

Pricing and Availability

2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)hexanedioic acid

Catalog No.: AA01V4CZ

CAS No.:161125-37-7 MDL No.:

MF: C21H21NO6 MW: 383.3945

Pricing and Availability

Fmoc-PEA

Catalog No.: AA01V4NV

CAS No.:329223-23-6 MDL No.:

MF: C17H18NO6P MW: 363.3017

Pricing and Availability

4-Ethyl-L-norleucine

Catalog No.: AA01W292

CAS No.:134055-71-3 MDL No.: MFCD16858020

MF: C8H17NO2 MW: 159.2261

Pricing and Availability

Fmoc-(S)-2-amino-5-(2-chlorophenyl)pentanoic acid

Catalog No.: AA01W29J

CAS No.:2350064-89-8 MDL No.:

MF: C26H24ClNO4 MW: 449.9261

Pricing and Availability

NH-3

Catalog No.: AA01X886

CAS No.:447415-26-1 MDL No.:

MF: C28H27NO6 MW: 473.5171

Pricing and Availability

(5-Bromo-1-benzothiophen-2-yl)(morpholino)methanone

Catalog No.: AA01X8T3

CAS No.:439107-98-9 MDL No.: MFCD03012918

MF: C13H12BrNO2S MW: 326.2089

Pricing and Availability

(5-Bromo-1-benzothiophen-2-yl)(1-pyrrolidinyl)methanone

Catalog No.: AA01X9E1

CAS No.:439108-00-6 MDL No.: MFCD03012919

MF: C13H12BrNOS MW: 310.2095

Pricing and Availability

2-Chloro-1-methyl-6-oxo-1,6-dihydropyridine-3-boronic Acid Pinacol Ester

Catalog No.: AA01XE81

CAS No.:2088451-38-9 MDL No.: MFCD32691005

MF: C12H17BClNO3 MW: 269.5323

Pricing and Availability

5-Bromo-N-methyl-1-benzothiophene-2-carboxamide

Catalog No.: AA01XEO7

CAS No.:439107-97-8 MDL No.: MFCD03012917

MF: C10H8BrNOS MW: 270.1456

Pricing and Availability

5-Bromo-N,N-dimethyl-1-benzothiophene-2-carboxamide

Catalog No.: AA01XG9O

CAS No.:439107-96-7 MDL No.: MFCD03012916

MF: C11H10BrNOS MW: 284.1722

Pricing and Availability

3,4-DAA

Catalog No.: AA01XHSZ

CAS No.:2117759-07-4 MDL No.:

MF: C18H17NO6 MW: 343.3307

Pricing and Availability

1,3-Dioxoisoindolin-2-yl 2-methylpentanoate

Catalog No.: AA0201M7

CAS No.:2170681-06-6 MDL No.:

MF: C14H15NO4 MW: 261.2732

Pricing and Availability

1,3-Dioxoisoindolin-2-yl 3-phenylpropanoate

Catalog No.: AA0201LT

CAS No.:84379-71-5 MDL No.: MFCD02189533

MF: C17H13NO4 MW: 295.2894

Pricing and Availability

1,3-Dioxoisoindolin-2-yl 2-ethylbutanoate

Catalog No.: AA0201MD

CAS No.:2245137-17-9 MDL No.:

MF: C14H15NO4 MW: 261.2732

Pricing and Availability

1,3-Dioxoisoindolin-2-yl 3,3-dimethylbutanoate

Catalog No.: AA0201MM

CAS No.:1894176-78-3 MDL No.:

MF: C14H15NO4 MW: 261.2732

Pricing and Availability

1,3-Dioxoisoindolin-2-yl isobutyrate

Catalog No.: AA0201MR

CAS No.:1631179-23-1 MDL No.:

MF: C12H11NO4 MW: 233.2200

Pricing and Availability

1,3-Dioxoisoindolin-2-yl 2-ethylhexanoate

Catalog No.: AA0201MS

CAS No.:1872262-63-9 MDL No.:

MF: C16H19NO4 MW: 289.3264

Pricing and Availability