成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

ChemicalBook
Chinese English Japanese Korean
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
N-benzoyl-N'-(2-methoxyphenyl)thioureaN-benzoyl-N'-(2-methoxyphenyl)thiourea
N-(1-benzofuran-2-ylcarbonyl)-N'-(4-sec-butylphenyl)thioureaN-(1-benzofuran-2-ylcarbonyl)-N'-(4-sec-butylphenyl)thiourea356078-32-5
N-(4-benzoylphenyl)-2-(2-methylphenoxy)propanamideN-(4-benzoylphenyl)-2-(2-methylphenoxy)propanamide723259-65-2
N-[2-(benzyloxy)benzyl]-N-(2-pyridinylmethyl)amineN-[2-(benzyloxy)benzyl]-N-(2-pyridinylmethyl)amine
N'-benzoyl-3-iodobenzohydrazideN'-benzoyl-3-iodobenzohydrazide
N-benzyl-3-chloro-6-methoxy-N-methyl-1-benzothiophene-2-carboxamideN-benzyl-3-chloro-6-methoxy-N-methyl-1-benzothiophene-2-carboxamide496032-82-7
N-{3-(1,3-benzothiazol-2-ylsulfanyl)-5-nitrophenyl}-2-(2-methylphenoxy)acetamideN-{3-(1,3-benzothiazol-2-ylsulfanyl)-5-nitrophenyl}-2-(2-methylphenoxy)acetamide505062-82-8
N-benzyl-2-[2,5-dimethoxy(phenylsulfonyl)anilino]-N-methylacetamideN-benzyl-2-[2,5-dimethoxy(phenylsulfonyl)anilino]-N-methylacetamide
N'-{3-[(1,3-benzoxazol-2-ylsulfanyl)methyl]-4-methoxybenzylidene}-2-phenylacetohydrazideN'-{3-[(1,3-benzoxazol-2-ylsulfanyl)methyl]-4-methoxybenzylidene}-2-phenylacetohydrazide362496-28-4
N-(2,1,3-benzothiadiazol-4-yl)-2-(4-tert-butylphenoxy)acetamideN-(2,1,3-benzothiadiazol-4-yl)-2-(4-tert-butylphenoxy)acetamide425613-04-3
N-[2-(4-benzoyl-1-piperazinyl)phenyl]-3-methylbenzamideN-[2-(4-benzoyl-1-piperazinyl)phenyl]-3-methylbenzamide792939-98-1
N-benzyl-2-(4-chlorophenoxy)propanamideN-benzyl-2-(4-chlorophenoxy)propanamide815624-56-7
N-(5-benzyl-1,3,4-thiadiazol-2-yl)-2-thiophenecarboxamideN-(5-benzyl-1,3,4-thiadiazol-2-yl)-2-thiophenecarboxamide
N-benzyl-4-(benzyloxy)benzamideN-benzyl-4-(benzyloxy)benzamide425655-13-6
N-benzyl-3-({3-chloro-4-nitrobenzoyl}hydrazono)butanamideN-benzyl-3-({3-chloro-4-nitrobenzoyl}hydrazono)butanamide360057-06-3
N-{3-[(4-benzoyl-1-piperazinyl)sulfonyl]phenyl}-2-thiophenecarboxamideN-{3-[(4-benzoyl-1-piperazinyl)sulfonyl]phenyl}-2-thiophenecarboxamide698990-81-7
N-benzyl-5-(2-furyl)-N-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxamideN-benzyl-5-(2-furyl)-N-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxamide312634-69-8
N-[5-(1,3-benzoxazol-2-yl)-2-methoxyphenyl]-2-(2,4-dimethylphenoxy)acetamideN-[5-(1,3-benzoxazol-2-yl)-2-methoxyphenyl]-2-(2,4-dimethylphenoxy)acetamide439132-75-9
N-benzyl-2-({5-[(4-tert-butylphenoxy)methyl]-4-phenyl-4H-1,2,4-triazol-3-yl}sulfanyl)acetamideN-benzyl-2-({5-[(4-tert-butylphenoxy)methyl]-4-phenyl-4H-1,2,4-triazol-3-yl}sulfanyl)acetamide312280-55-0
N-(1,3-benzothiazol-2-yl)-N'-(4-methylbenzoyl)thioureaN-(1,3-benzothiazol-2-yl)-N'-(4-methylbenzoyl)thiourea131120-12-2
N-benzyl-2-phenylcyclopropanecarboxamideN-benzyl-2-phenylcyclopropanecarboxamide
N-[4-(1,3-benzothiazol-2-yl)benzyl]-4-methoxybenzamideN-[4-(1,3-benzothiazol-2-yl)benzyl]-4-methoxybenzamide724449-39-2
N-(1,3-benzodioxol-5-yl)-2-[3-(2-{[5-(4-fluorophenyl)-2H-tetraazol-2-yl]acetyl}carbohydrazonoyl)-1H-indol-1-yl]acetamideN-(1,3-benzodioxol-5-yl)-2-[3-(2-{[5-(4-fluorophenyl)-2H-tetraazol-2-yl]acetyl}carbohydrazonoyl)-1H-indol-1-yl]acetamide445428-15-9
N-[3-(1,3-benzothiazol-2-yl)-2-methylphenyl]-2,2-diphenylacetamideN-[3-(1,3-benzothiazol-2-yl)-2-methylphenyl]-2,2-diphenylacetamide431925-72-3
N-(1,3-benzodioxol-5-yl)-2-[4-chloro-2-methyl(phenylsulfonyl)anilino]acetamideN-(1,3-benzodioxol-5-yl)-2-[4-chloro-2-methyl(phenylsulfonyl)anilino]acetamide412919-89-2
N-benzoyl-N'-[2-(4-iodophenyl)-1,3-benzoxazol-5-yl]thioureaN-benzoyl-N'-[2-(4-iodophenyl)-1,3-benzoxazol-5-yl]thiourea428455-61-2
N-benzhydryl-2-[(8,8-dimethyl-7,10-dihydro-8H-pyrano[3'',4'':5',6']pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)sulfanyl]acetamideN-benzhydryl-2-[(8,8-dimethyl-7,10-dihydro-8H-pyrano[3'',4'':5',6']pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)sulfanyl]acetamide487025-48-9
N-(4-{[benzyl(methyl)amino]sulfonyl}phenyl)-2-methylbenzamideN-(4-{[benzyl(methyl)amino]sulfonyl}phenyl)-2-methylbenzamide497090-00-3
N-[3-(1,3-benzothiazol-2-yl)phenyl]-3-iodobenzamideN-[3-(1,3-benzothiazol-2-yl)phenyl]-3-iodobenzamide431978-92-6
N-[3-(1,3-benzothiazol-2-yl)-4-hydroxyphenyl]-2-(2,4-dichloro-6-methylphenoxy)acetamideN-[3-(1,3-benzothiazol-2-yl)-4-hydroxyphenyl]-2-(2,4-dichloro-6-methylphenoxy)acetamide371234-23-0
N-benzyl-4-{[(isobutyrylamino)carbothioyl]amino}-N-methylbenzenesulfonamideN-benzyl-4-{[(isobutyrylamino)carbothioyl]amino}-N-methylbenzenesulfonamide
N-[4-(benzyloxy)phenyl]-3,4-dimethoxybenzamideN-[4-(benzyloxy)phenyl]-3,4-dimethoxybenzamide214844-14-1
N-benzyl-N-(2-{benzyl[(3-methylphenoxy)acetyl]amino}ethyl)-2-(3-methylphenoxy)acetamideN-benzyl-N-(2-{benzyl[(3-methylphenoxy)acetyl]amino}ethyl)-2-(3-methylphenoxy)acetamide
N'-(1-benzyl-4-piperidinylidene)-3-nitro-4-methylbenzohydrazideN'-(1-benzyl-4-piperidinylidene)-3-nitro-4-methylbenzohydrazide540755-77-9
N-{2-[benzyl(methyl)amino]ethyl}-2-(4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl)acetamideN-{2-[benzyl(methyl)amino]ethyl}-2-(4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl)acetamide353261-40-2
N-[(5-{[2-(benzylamino)-2-oxoethyl]sulfanyl}-4-methyl-4H-1,2,4-triazol-3-yl)methyl]-3,4-dichlorobenzamideN-[(5-{[2-(benzylamino)-2-oxoethyl]sulfanyl}-4-methyl-4H-1,2,4-triazol-3-yl)methyl]-3,4-dichlorobenzamide708252-69-1
N-[(1-benzyl-2,3-dimethyl-1H-indol-5-yl)carbonyl]-N'-(2-bromo-4-methylphenyl)thioureaN-[(1-benzyl-2,3-dimethyl-1H-indol-5-yl)carbonyl]-N'-(2-bromo-4-methylphenyl)thiourea445239-78-1
N-[3-(1,3-benzothiazol-2-yl)-4-chlorophenyl]-N'-(4-methylbenzoyl)thioureaN-[3-(1,3-benzothiazol-2-yl)-4-chlorophenyl]-N'-(4-methylbenzoyl)thiourea425666-30-4
N-[3-(benzyloxy)-2-pyridinyl]-4-nitrobenzamideN-[3-(benzyloxy)-2-pyridinyl]-4-nitrobenzamide723738-42-9
N-[3-(1,3-benzothiazol-2-yl)-4-hydroxyphenyl]-N'-pentanoylthioureaN-[3-(1,3-benzothiazol-2-yl)-4-hydroxyphenyl]-N'-pentanoylthiourea429635-36-9
N-(2-benzoylphenyl)-1-ethyl-1H-pyrazole-4-carboxamideN-(2-benzoylphenyl)-1-ethyl-1H-pyrazole-4-carboxamide
N-(1-benzofuran-2-ylcarbonyl)-N'-[4-(dimethylamino)phenyl]thioureaN-(1-benzofuran-2-ylcarbonyl)-N'-[4-(dimethylamino)phenyl]thiourea428502-70-9
N-(3-(1,3-benzothiazol-2-ylsulfanyl)-4-oxo-1(4H)-naphthalenylidene)benzenesulfonamideN-(3-(1,3-benzothiazol-2-ylsulfanyl)-4-oxo-1(4H)-naphthalenylidene)benzenesulfonamide
N-benzyl-2-methoxy-5-methylbenzenesulfonamideN-benzyl-2-methoxy-5-methylbenzenesulfonamide409357-19-3
N-[2-(4-benzylpiperidin-1-yl)-2-oxoethyl]-N-(3,4-dimethoxyphenyl)-4-methylbenzenesulfonamideN-[2-(4-benzylpiperidin-1-yl)-2-oxoethyl]-N-(3,4-dimethoxyphenyl)-4-methylbenzenesulfonamide496935-83-2
N-benzyl-N-(1-methyl-2(1H)-quinolinylidene)amineN-benzyl-N-(1-methyl-2(1H)-quinolinylidene)amine
N-(1,3-benzothiazol-2-yl)-2-phenylbutanamideN-(1,3-benzothiazol-2-yl)-2-phenylbutanamide349086-11-9
N-[3-(1,3-benzothiazol-2-yl)-2H-chromen-2-ylidene]-N-(4-chlorophenyl)amineN-[3-(1,3-benzothiazol-2-yl)-2H-chromen-2-ylidene]-N-(4-chlorophenyl)amine339207-57-7
N-(2-benzoyl-4-chlorophenyl)-2-methoxybenzamideN-(2-benzoyl-4-chlorophenyl)-2-methoxybenzamide433695-90-0
N-[2-(benzyloxy)-3-ethoxybenzyl]-N-(3-pyridinylmethyl)amineN-[2-(benzyloxy)-3-ethoxybenzyl]-N-(3-pyridinylmethyl)amine712289-93-5
N-[2-(benzyloxy)-5-bromobenzyl]-N-(3,4-dimethylphenyl)amineN-[2-(benzyloxy)-5-bromobenzyl]-N-(3,4-dimethylphenyl)amine664314-22-1
N-[2-(benzyloxy)-5-chlorobenzyl]-N-{2-[(1-methyl-1H-tetraazol-5-yl)sulfanyl]ethyl}amineN-[2-(benzyloxy)-5-chlorobenzyl]-N-{2-[(1-methyl-1H-tetraazol-5-yl)sulfanyl]ethyl}amine774553-65-0
N-[4-(benzyloxy)phenyl]-4-fluorobenzenesulfonamideN-[4-(benzyloxy)phenyl]-4-fluorobenzenesulfonamide
N-[4-(4-benzoyl-1-piperazinyl)phenyl]-2-furamideN-[4-(4-benzoyl-1-piperazinyl)phenyl]-2-furamide
N-(1,3-benzodioxol-5-ylmethyl)-4-bromo-3-ethoxybenzenesulfonamideN-(1,3-benzodioxol-5-ylmethyl)-4-bromo-3-ethoxybenzenesulfonamide728024-08-6
N-{4-[(benzylamino)carbonyl]phenyl}-4-methoxybenzamideN-{4-[(benzylamino)carbonyl]phenyl}-4-methoxybenzamide111008-49-2
N-benzyl-4-methyl-N-(2-{[2-(2-oxo-1,2-dihydro-3H-indol-3-ylidene)hydrazino]carbonyl}phenyl)benzenesulfonamideN-benzyl-4-methyl-N-(2-{[2-(2-oxo-1,2-dihydro-3H-indol-3-ylidene)hydrazino]carbonyl}phenyl)benzenesulfonamide339012-30-5
N'-[3-(benzyloxy)benzylidene]-2-(2-methylphenoxy)acetohydrazideN'-[3-(benzyloxy)benzylidene]-2-(2-methylphenoxy)acetohydrazide300673-64-7
N-(1,3-benzodioxol-5-ylmethyl)-4-ethoxynaphthalene-1-sulfonamideN-(1,3-benzodioxol-5-ylmethyl)-4-ethoxynaphthalene-1-sulfonamide392235-91-5
N-(1,3-benzodioxol-5-yl)-2-[2,6-dimethyl(methylsulfonyl)anilino]acetamideN-(1,3-benzodioxol-5-yl)-2-[2,6-dimethyl(methylsulfonyl)anilino]acetamide
N-benzyl-3-(4-methylphenyl)-3-phenylpropanamideN-benzyl-3-(4-methylphenyl)-3-phenylpropanamide
N-[5-(1,3-benzoxazol-2-yl)-2-methoxyphenyl]-4-chlorobenzamideN-[5-(1,3-benzoxazol-2-yl)-2-methoxyphenyl]-4-chlorobenzamide903464-88-0
N-benzoyl-4-ethoxy-N-(6,7,8,9-tetrahydrodibenzo[b,d]furan-2-yl)benzenesulfonamideN-benzoyl-4-ethoxy-N-(6,7,8,9-tetrahydrodibenzo[b,d]furan-2-yl)benzenesulfonamide518304-46-6
N'-[4-(benzyloxy)benzylidene]-2-(5-isopropyl-2-methylphenoxy)acetohydrazideN'-[4-(benzyloxy)benzylidene]-2-(5-isopropyl-2-methylphenoxy)acetohydrazide303087-83-4
N-(1,3-benzodioxol-5-yl)-1,3-dioxo-2-(tetrahydro-2-furanylmethyl)-5-isoindolinecarboxamideN-(1,3-benzodioxol-5-yl)-1,3-dioxo-2-(tetrahydro-2-furanylmethyl)-5-isoindolinecarboxamide
N-[2-(benzyloxy)benzylidene]-4-methoxyanilineN-[2-(benzyloxy)benzylidene]-4-methoxyaniline304454-49-7
N-(1,3-benzodioxol-5-ylmethyl)-2-(3,4-dichlorophenyl)-4-quinolinecarboxamideN-(1,3-benzodioxol-5-ylmethyl)-2-(3,4-dichlorophenyl)-4-quinolinecarboxamide353786-65-9
N-[1-(1,3-benzodioxol-5-yl)ethyl]-5-methyl-3-thiophenecarboxamideN-[1-(1,3-benzodioxol-5-yl)ethyl]-5-methyl-3-thiophenecarboxamide438231-98-2
N-[4-(1,3-benzoxazol-2-yl)phenyl]-N-{4-[(2,6-dichlorobenzyl)oxy]-3-methoxybenzyl}acetamideN-[4-(1,3-benzoxazol-2-yl)phenyl]-N-{4-[(2,6-dichlorobenzyl)oxy]-3-methoxybenzyl}acetamide353503-20-5
N-(1,3-benzodioxol-5-ylmethyl)-1-butyl-1H-benzimidazol-2-amineN-(1,3-benzodioxol-5-ylmethyl)-1-butyl-1H-benzimidazol-2-amine331971-13-2
N-benzyl-2-[(3-methyl-1H-pyrazol-1-yl)acetyl]hydrazinecarbothioamideN-benzyl-2-[(3-methyl-1H-pyrazol-1-yl)acetyl]hydrazinecarbothioamide512815-36-0
N-benzyl-2-(4-{[(2-phenylethyl)amino]sulfonyl}phenoxy)acetamideN-benzyl-2-(4-{[(2-phenylethyl)amino]sulfonyl}phenoxy)acetamide
N-benzoyl-2,4-dimethyl-N-(6,7,8,9-tetrahydrodibenzo[b,d]furan-2-yl)benzenesulfonamideN-benzoyl-2,4-dimethyl-N-(6,7,8,9-tetrahydrodibenzo[b,d]furan-2-yl)benzenesulfonamide518304-22-8
N-(1,3-benzodioxol-5-yl)-2-(3-{[3-(4-fluorobenzyl)-2,4-dioxo-1,3-thiazolidin-5-ylidene]methyl}-1H-indol-1-yl)acetamideN-(1,3-benzodioxol-5-yl)-2-(3-{[3-(4-fluorobenzyl)-2,4-dioxo-1,3-thiazolidin-5-ylidene]methyl}-1H-indol-1-yl)acetamide666713-56-0
N-(4-benzoylphenyl)-4-bromobenzenesulfonamideN-(4-benzoylphenyl)-4-bromobenzenesulfonamide825604-05-5
N-[4-(1,3-benzothiazol-2-yl)phenyl]-N'-{3-nitro-4-methoxybenzoyl}thioureaN-[4-(1,3-benzothiazol-2-yl)phenyl]-N'-{3-nitro-4-methoxybenzoyl}thiourea333739-21-2
N-[3-(benzyloxy)benzyl]-N-(3-ethoxypropyl)amineN-[3-(benzyloxy)benzyl]-N-(3-ethoxypropyl)amine
N-(4-benzoylphenyl)-2,4-dimethoxybenzamideN-(4-benzoylphenyl)-2,4-dimethoxybenzamide923557-03-3
N-benzyl-N-{4-[(6-chloro-3-pyridinyl)methoxy]-3-methoxybenzyl}amineN-benzyl-N-{4-[(6-chloro-3-pyridinyl)methoxy]-3-methoxybenzyl}amine875005-27-9
N-benzyl-N-[4-(benzyloxy)-2-pyridinyl]amineN-benzyl-N-[4-(benzyloxy)-2-pyridinyl]amine
N-benzoyl-N'-isopropylthioureaN-benzoyl-N'-isopropylthiourea
N-benzoyl-N'-(3-methoxypropyl)ureaN-benzoyl-N'-(3-methoxypropyl)urea691382-51-1
N-{1-[(benzylamino)carbonyl]-2-[5-(4-chlorophenyl)-2-furyl]vinyl}benzamideN-{1-[(benzylamino)carbonyl]-2-[5-(4-chlorophenyl)-2-furyl]vinyl}benzamide294655-51-9
N-[4-(benzyloxy)benzyl]-N-{4-[(1H-1,2,4-triazol-5-ylamino)methyl]phenyl}amineN-[4-(benzyloxy)benzyl]-N-{4-[(1H-1,2,4-triazol-5-ylamino)methyl]phenyl}amine
N-benzyl-N-(1,7,7-trimethylbicyclo[2.2.1]hept-2-yl)amineN-benzyl-N-(1,7,7-trimethylbicyclo[2.2.1]hept-2-yl)amine93810-65-2
N-(6-benzyl-3-cyano-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-2-yl)dodecanamideN-(6-benzyl-3-cyano-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-2-yl)dodecanamide332914-54-2
N-benzyl-4-[2-(1-cyclopropylethylidene)hydrazino]-4-oxobutanamideN-benzyl-4-[2-(1-cyclopropylethylidene)hydrazino]-4-oxobutanamide327069-22-7
N-[4-(benzyloxy)benzyl]-N-(2-methyl-2H-tetraazol-5-yl)amineN-[4-(benzyloxy)benzyl]-N-(2-methyl-2H-tetraazol-5-yl)amine
N-[4-(1,3-benzothiazol-2-ylmethoxy)phenyl]propanamideN-[4-(1,3-benzothiazol-2-ylmethoxy)phenyl]propanamide197359-85-6
N-(1,3-benzodioxol-5-yl)-4-{[3,4-dimethyl(methylsulfonyl)anilino]methyl}benzamideN-(1,3-benzodioxol-5-yl)-4-{[3,4-dimethyl(methylsulfonyl)anilino]methyl}benzamide
N-benzyl-2-tert-butylisonicotinamideN-benzyl-2-tert-butylisonicotinamide
N-benzyl-N'-(4-tert-butylbenzoyl)thioureaN-benzyl-N'-(4-tert-butylbenzoyl)thiourea
N-[1-[(benzylamino)carbonyl]-2-(4-chlorophenyl)-1-propenyl]benzamideN-[1-[(benzylamino)carbonyl]-2-(4-chlorophenyl)-1-propenyl]benzamide445407-43-2
N-{[2-({2-[(benzoylamino)carbothioyl]hydrazino}carbonyl)hydrazino]carbothioyl}benzamideN-{[2-({2-[(benzoylamino)carbothioyl]hydrazino}carbonyl)hydrazino]carbothioyl}benzamide33901-49-4
N-[3-(1,3-benzothiazol-2-yl)-2-methylphenyl]-2-(4-bromophenoxy)acetamideN-[3-(1,3-benzothiazol-2-yl)-2-methylphenyl]-2-(4-bromophenoxy)acetamide292065-05-5
N-benzyl-2-(2-{3-bromo-4-[2-(3,5-dichloroanilino)-2-oxoethoxy]-5-methoxybenzylidene}hydrazino)-2-oxoacetamideN-benzyl-2-(2-{3-bromo-4-[2-(3,5-dichloroanilino)-2-oxoethoxy]-5-methoxybenzylidene}hydrazino)-2-oxoacetamide499110-40-6
N-[5-(1,3-benzothiazol-2-yl)-2-methylphenyl]-2-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-9H-purin-9-yl)acetamideN-[5-(1,3-benzothiazol-2-yl)-2-methylphenyl]-2-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-9H-purin-9-yl)acetamide666209-36-5
N''-benzoyl-N-(4,6-dimethyl-2-pyrimidinyl)-N'-(4-methylphenyl)guanidineN''-benzoyl-N-(4,6-dimethyl-2-pyrimidinyl)-N'-(4-methylphenyl)guanidine
N'-[3-(2-benzoylcarbohydrazonoyl)-5-bromo-2-hydroxybenzylidene]benzohydrazideN'-[3-(2-benzoylcarbohydrazonoyl)-5-bromo-2-hydroxybenzylidene]benzohydrazide339574-26-4
N-[4-(1,3-benzothiazol-2-ylmethoxy)phenyl]-N'-ethylthioureaN-[4-(1,3-benzothiazol-2-ylmethoxy)phenyl]-N'-ethylthiourea724454-00-6
427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531
Copyright 2019 ? ChemicalBook. All rights reserved