Cas No|Cas Number|CAS Registry Number:13529-31-2 .Chemical Name|Molecular Name:(2b,3a,16b,17b)-2,16-Bispiperidino-3,17-diacetoxy-5-androstane Formula:C33H54N2O4 Synonyms:(2β,3α,5α,16β,17β)-2,16-Di(1-piperidinyl)androstane-3,17-diyl diacetate, 2ss,16ss-dipiperidino-5a-androstane-3a,17ss-dioldiacetate, Androstane-3,17-diol, 2,16-di-1-piperidinyl-, diacetate (ester), (2β,3α,5α,16β,17β)- Molecular Weight:542.793
13529-31-2 Molecular Info »Cas Chemical NameCas No
Cas No|Cas Number|CAS Registry Number:1362-42-1 .Chemical Name|Molecular Name:(+)-absinthin Formula:C30H40O6 Synonyms:Sbsinthin, (1R,2R,5S,8S,9S,12S,13R,14S,15S,16R,17S,20S,21S,24S)-12,17-Dihydroxy-3,8,12,17,21,25-hexamethyl-6,23-dioxaheptacyclo[13.9.2.0.0.0.0.0]hexacosa-3,25-diene-7,22-dione, ABSINTHII TINCTURA, ABSYNTHIN, Absinthiin, Absynthine, 2H-7,13b-Ethenofuro[2'',3'':4',5']azuleno[1',2':2,3]azuleno[4,5-b]furan-2,12(11H)-dione, 3,3a,4,5,6,6a,6b,7,7a,8,9,10,10a,13a,13c,14b-hexadecahydro-6,8-dihydroxy-3,6,8,11,14,15-hexamethyl-, (3S,3aS,6S,6aR,6bS,7S,7aR,8S,10aS,11S,13aS,13bR,13cR,14bS)- Molecular Weight:496.635
1362-42-1 Molecular Info »Cas No|Cas Number|CAS Registry Number:10016-20-3 .Chemical Name|Molecular Name:α-Cyclodextrin Formula:C36H60O30 Synonyms:Ringdex A, (5R,10R,15R,20R,25R,30R,31R,32R,33R,34R,35R,36R,37R,38R,39R,40R,41R,42R)-5,10,15,20,25,30-hexakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29-dodecaoxaheptacyclo[26.2.2.23,6.28,11.213,16.218,21.223,26]dotetracontane-31,32,33,34,35,36,37,38,39,40,41,42-dodecol, (1S,3R,5R,6S,8R,10R,11S,13R,15R,16S,18R,20R,21S,23R,25R,26S,28R,30R,31R,32R,33R,34R,35R,36R,37R,38R,39R,40R,41R,42R)-5,10,15,20,25,30-Hexakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29-dodecaoxaheptacyclo[26.2.2.2.2.2.2.2]dotetracontane-31,32,33,34,35,36,37,38,39,40,41,42-dodecol, α-CD,Cyclohexaamylose,cyclomaltohexaose, MFCD00078207, Cyclohexapentylose, (1S,3R,5R,6S,8R,10R,11S,13R,15R,16S,18R,20R,21S,23R,25R,26S,28R,30R,31R,32R,33R,34R,35R,36R,37R,38R,39R,40R,41R,42R)-5,10,15,20,25,30-Hexakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29-dodecaoxahe ;ptacyclo[26.2.2.2.2.2.2.2]dotetracontane-31,32,33,34,35,36,37,38,39,40,41,42-dodecol, α-Cyclodextrin, a-Schardinger Dextrin, CYCLOMALTOHEXOSE, cyclomaltodextrin, a-Cycloamylose, alpha-cyclodextrin, Alfadex, Schardinger α-Dextrin, CYCLOHEXAAMYLOSE, cyclomaltohexaose, alpha-Cycloamylose, (1S,3R,5R,6S,8R,10R,11S,13R,15R,16S,18R,20R,21S,23R,25R,26S,28R,30R,31R,32R,33R,34R,35R,36R,37R,38R,39R,40R,41R,42R)-5,10,15,20,25,30-Hexakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29-dodecaoxaheptacyclo[26.2.2.2.2.2.2.2]dotetracontan-31,32,33,34,35,36,37,38,39,40,41,42-dodecol, Celdex A 100, (1S,3R,5R,6S,8R,10R,11S,13R,15R,16S,18R,20R,21S,23R,25R,26S,28R,30R,31R,32R,33R,34R,35R,36R,37R,38R,39R,40R,41R,42R)-5,10,15,20,25,30-Hexakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29-dodecaoxaheptacyclo[26.2.2.2.2.2.2.2]dotetracontane-31,32,33,34,35,36,37,38,39,40,41,42-dodecol (non-preferred name), α-Schardinger dextrin, α-Cycloamylose, a-Dextrin, Dexy Pearl a-100, α-Dextrin, a-Cyclodextrin., EINECS 233-007-4, a-Cyclodextrin Molecular Weight:972.844
10016-20-3 Molecular Info »Cas No|Cas Number|CAS Registry Number:31396-84-6 .Chemical Name|Molecular Name:ZINC 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-HEXADECAFLUORO-29H,31H-PHTHALOCYANINE Formulanor:C32F16N8Zn Synonyms:29H,31H-Phthalocyanine,1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecafluoro-, zinc complex, G.L. 103, P.M. 360, MFCD00216667, Zinc, [1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecafluoro-29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-,(SP-4-1)-, Hexadecafluorophthalocyaninatozinc, Zinc, [hexadecafluorophthalocyaninato(2-)]-, Zinc(II)-1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecafluorophthalocyanine Molecular Weight:865.75
31396-84-6 Molecular Info »Cas No|Cas Number|CAS Registry Number:23725-15-7 .Chemical Name|Molecular Name:Vat Brown 1, Solubilised Formulanor:C42H16N2Na6O24S6 Synonyms:Solvat Brown BR, Chemisol Brown BR, Naphth[2',3':6,7]indolo[2,3-c]dinaphtho[2,3-a:2',3'-i]carbazole-5,7,12,14,19,24-hexol, hexakis(hydrogen sulfate) (ester), sodium salt (1:6), Tinosol Brown BR, Sandozol Brown BR, Soledon Brown IBR, hexasodium dinaphtho[2,3-a:2',3'-i]naphtho[2',3':6,7]indolo[2,3-c]carbazole-5,7,12,17,22,24-hexayl hexasulfate, Daitosol Brown IBR, Hexasodium naphth(2',3':6,7)indolo(2,3-c)dinaphtho(2,3-a:2',3'-i)carbazole-5,10,15,17,22,24-hexyl hexasulphate, Anthrasol Brown IBR, Solasol Brown BRS, Hexasodium dinaphtho[2,3-a:2',3'-i]naphtho[2',3':6,7]indolo[2,3-c]carbazole-5,7,12,14,19,24-hexayl hexasulfate Molecular Weight:1262.904
23725-15-7 Molecular Info »Cas No|Cas Number|CAS Registry Number:851536-75-9 .Chemical Name|Molecular Name:Umirolimus Formulanor:C55H87NO14 Synonyms:Umirolimus, Biolimus A9, 23,27-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclohentriacontine-1,5,11,28,29(4H,6H,31H)-pentone, 3-[(1R)-2-[(1S,3R,4R)-4-(2-ethoxyethoxy)-3-methoxycyclohexyl]-1-methylethyl]-9,10,12,13,14,21,22,23,24,25,26,27,32,33,34,34a-hexadecahydro-9,27-dihydroxy-10,21-dimethoxy-6,8,12,14,20,26-hexamethyl-, (3S,6R,7E,9R,10R,12R,14S,15E,17E,19E,21S,26R,27R,34aS)-, (1R,9S,12S,15R,16E,18R,19R,21R,23S,24E,26E,28E,30S,35R)-12-{(2R)-1-[(1S,3R,4R)-4-(2-Ethoxyethoxy)-3-methoxycyclohexyl]-2-propanyl}-1,18-dihydroxy-19,30-dimethoxy-15,17,21,23,29,35-hexamethyl-11,36-dio ;xa-4-azatricyclo[30.3.1.0]hexatriaconta-16,24,26,28-tetraene-2,3,10,14,20-pentone, Biolimus, MFCD22124433 Molecular Weight:986.278
851536-75-9 Molecular Info »Cas No|Cas Number|CAS Registry Number:168009-85-6 .Chemical Name|Molecular Name:Triptonine B Formulanor:C46H49NO22 Synonyms:Triptonine B, Methyl [(1S,2R,3R,4R,7S,11R,15R,16R,17R,18S,21S,22R,32R,34R,35S)-2,16,17,35-tetraacetoxy-21,34-dihydroxy-7,21,22,32,34-pentamethyl-6,10,12,20,29-pentaoxo-5,13,19,30,33-pentaoxa-26-azahexacyclo[16.15.1 ;.1.0.0.0]pentatriaconta-23,25,27-trien-11-yl]acetate Molecular Weight:961.912
168009-85-6 Molecular Info »Cas No|Cas Number|CAS Registry Number:191729-44-9 .Chemical Name|Molecular Name:Tenacissoside I Formulanor:C44H62O14 Synonyms:(3β,5α,11α,12β,14β)-12-Acetoxy-3-{[2,6-dideoxy-4-O-(6-deoxy-3-O-methyl-D-allopyranosyl)-3-O-methyl-β-D-arabino-hexopyranosyl]oxy}-20-oxo-8,14-epoxypregnan-11-yl benzoate, Pregnan-20-one, 12-(acetyloxy)-11-(benzoyloxy)-3-[[2,6-dideoxy-4-O-(6-deoxy-3-O-methyl-β-D-allopyranosyl)-3-O-methyl-β-D-arabino-hexopyranosyl]oxy]-8,14-epoxy-, (3β,5α,11α,12β,14be ta,17α)-, Pregnan-20-one, 12-(acetyloxy)-11-(benzoyloxy)-3-[[2,6-dideoxy-4-O-(6-deoxy-3-O-methyl-D-allopyranosyl)-3-O-methyl-β-D-arabino-hexopyranosyl]oxy]-8,14-epoxy-, (3β,5α,11α,12β,14β)-, (1R,3aR,4aS,6aS,8S,10aS,10bS,11S,12S,12aS)-12-acetoxy-1-acetyl-8-(((2R,4R,5R,6R)-5-(((2S,3R,4R,5R,6R)-3,5-dihydroxy-4-methoxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-4-methoxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-10a,12a-dimethyltetradecahydro-1H-cyclopenta[1,2]phenanthro[1,10a-b]oxiren-11-yl benzoate, (3β,5α,11α,12β,14β,17α)-12-Acetoxy-3-{[2,6-dideoxy-4-O-(6-deoxy-3-O-methyl-β-D-allopyranosyl)-3-O-methyl-β-D-arabino-hexopyranosyl]oxy}-20-oxo-8,14-epoxypregnan-11-yl benzoa te, Tenacissoside I Molecular Weight:814.955
191729-44-9 Molecular Info »Cas No|Cas Number|CAS Registry Number:61379-65-5 .Chemical Name|Molecular Name:Rifapentine Formulanor:C47H64N4O12 Synonyms:rifamycin-S, Rifamycin-B-tripropyl-hydrazid, (7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-26-{[(4-Cyclopentyl-1-piperazinyl)imino]methyl}-2,15,17,27,29-pentahydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-6,23-dioxo-8,30-dioxa-24-azatetracy ;clo[23.3.1.1.0]triaconta-1(29),2,4,9,19,21,25,27-octaen-13-yl acetate, Rifapentine, rifamycin-B tripropylhydrazide, 2,7-(Epoxy[1,11,13]pentadecatrienoimino)naphtho[2,1-b]furan-1,11(2H)-dione, 21-(acetyloxy)-8-[[(4-cyclopentyl-1-piperazinyl)imino]methyl]-5,6,9,17,19-pentahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-, (2S,12Z,14E,16S,17S,18R,19R,20R,21S,22R,23S,24E)- Molecular Weight:877.031
61379-65-5 Molecular Info »Cas No|Cas Number|CAS Registry Number:13553-79-2 .Chemical Name|Molecular Name:RifamycinS Formulanor:C37H45NO12 Synonyms:Rifamycin,1,4-dideoxy-1,4-dihydro-1,4-dioxo, UNII-PI53N820JV, rifomycin-S, rifamycin-S, (7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-2,15,17-Trihydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-6,23,27,29-tetraoxo-8,30-dioxa-24-azatetracyclo[23.3.1.1.0]triaconta-1(28),2,4,9,19,21,25-heptaen-13-yl acetate, NCI 144-130, (2S,12Z,14E,16S,17S,18R,19R,20R,21S,22R,23S,24E)-5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,6,9,11-tetraoxo-1,2,6,9-tetrahydro-2,7-(epoxypentadeca[1,11,13]trienoimino)naphtho[2,1-b]furan-21-yl acetate, EINECS 236-938-4, 2,7-(Epoxy[1,11,13]pentadecatrienoimino)naphtho[2,1-b]furan-1,6,9,11(2H)-tetrone, 21-(acetyloxy)-5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-, (2S,12Z,14E,16S,17S,18R,19R,20R,21S,22R,23S,24E)-, (12S,3E,5S,13E,15Z)-7t-acetoxy-15,9c,11t-trihydroxy-5r-methoxy-12,4,6t,8c,10c,12t,16-heptamethyl-2-oxa-18-aza-1(2,7)-naphtho[2,1-b]furana-cyclooctadecaphane-3,13,15-triene-11,6,9,17-tetraone, rifaximin S, O1,O4-didehydro-rifamycin, (7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-2,15,17-Trihydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-6,23,27,29-tetraoxo-8,30-dioxa-24-azatetracyclo[23.3.1.1.0]triaconta-1(28),2,4,9 ,19,21,25-heptaen-13-yl acetate, 1,4-Dideoxy-1,4-dihydro-1,4-dioxorifamycin, RifamycinS Molecular Weight:695.753
13553-79-2 Molecular Info »Cas No|Cas Number|CAS Registry Number:6211-32-1 .Chemical Name|Molecular Name:Rauwolscine hydrochloride Formulanor:C21H27ClN2O3 Synonyms:isoyohimbine, 20α-Yohimban-16β-carboxylic acid, 17α-hydroxy-, methyl ester, monohydrochloride (8CI), EINECS 228-279-6, rauwolscine, Yohimban-16-carboxylic acid, 17-hydroxy-, methyl ester, (15ξ,16β,17α,20α)-, hydrochloride (1:1), Methyl (15ξ,16β,17α,20α)-17-hydroxyyohimban-16-carboxylate hydrochloride (1:1), Methyl (1S,2S,4aS,13bS,14aS)-2-hydroxy-1,2,3,4,4a,5,7,8,13,13b,14,14a-dodecahydroindolo[2',3':3,4]pyrido[1,2-b]isoquinoline-1-carboxylate hydrochloride, Methyl-(1S,2S,4aS,13bS,14aS)-2-hydroxy-1,2,3,4,4a,5,7,8,13,13b,14,14a-dodecahydroindolo[2',3':3,4]pyrido[1,2-b]isochinolin-1-carboxylathydrochlorid, mesoyohimbine, Methyl (16β,17α,20α)-17-hydroxyyohimban-16-carboxylate hydrochloride (1:1), Methyl (16β,17α,20α)-17-hydroxyyohimban-16-carboxylate hydrochloride, (16β,17α,20α)-17-Hydroxyyohimban-16-carboxylate de méthyle chlorhydrate, rauwolfscine hydrochloride, 20α-Yohimban-16β-carboxylic acid, 17α-hydroxy-, methyl […]
6211-32-1 Molecular Info »Cas No|Cas Number|CAS Registry Number:25465-77-4 .Chemical Name|Molecular Name:Purpurin 18 Formulanor:C33H32N4O5 Synonyms:(17S-trans)-18-(2-Carboxyethyl)-12-ethenyl-7-ethyl-17,18-dihydro-3,8,13,17-tetramethyl-21H,23H-porphine-2,20-dicarboxylic acid cyclic 2,20-anhydride, 3-[(1E,10Z,15Z,19Z,22S,23S)-12-Ethyl-13,18,22,27-tetramethyl-3,5-dioxo-17-vinyl-4-oxa-8,24,25,26-tetraazahexacyclo[19.2.1.1.1.1.0]heptacosa-1,6,9(27),10,12,14(26),15,17,19,21(24)-decaen-23-yl]propanoic acid, (15S,16S)-10-Ethenyl-5-ethyl-16,18-dihydro-6,11,15,22-tetramethyl-18,20-dioxo-15H,20H-4,7:14,17-diimino-2,21-metheno-9,12-nitrilopyrano[4,3-b]azacyclononadecine-16-propanoic Acid, (17S,18S)-18-(2-Carboxyethyl)-12-vinyl-7-ethyl-17,18-dihydro-3,8,13,17-tetramethyl-21H,23H-porphyrin-2,20-dicarboxylic acid 2,20-anhydride, 3-[(1E,10Z,15Z,19Z,22S,23S)-12-Ethyl-13,18,22,27-tetramethyl-3,5-dioxo-17-vinyl-4-oxa-8,24,25,26-tetraazahexacyclo[19.2.1.1.1.1.0]heptacosa-1,6,9(27),10,12,14(26),15,17,19,21(2 4)-decaen-23-yl]propanoic acid, Purpurin a, Purpurin-18 Molecular Weight:564.631
25465-77-4 Molecular Info »Cas No|Cas Number|CAS Registry Number:65995-64-4 .Chemical Name|Molecular Name:punicalin Formulanor:C34H22O22 Synonyms:punicalin, (10S,11R,12R,15R)-3,4,5,11,12,13,21,22,23,26,27,38,39-Tridecahydroxy-9,14,17,29,36-pentaoxaoctacyclo[29.8.0.0.0.0.0.0.0]nonatriaconta-1(39),2,4,6,19,21,23,25,27 ,31,33,37-dodecaene-8,18,30,35-tetrone, gn-30 Molecular Weight:782.525
65995-64-4 Molecular Info »Cas No|Cas Number|CAS Registry Number:61574-54-7 .Chemical Name|Molecular Name:Pregnenolone-d4-1 Formulanor:C21H28D4O2 Synonyms:1,2:4,5-di-O-cyclohexylidene inositol, 1,2:4,5-Biscyclohexylidene DL-myo-Inositol, 1,2:4,5-Di-O-cyclohexylidene-D,L-myo-inositol, 1,2:4,5-dicyclohexylidene-myo-inositol, 1,2:4,5-di-O,O-cyclohexylidene-myo-inositol, 17,21,21,21-d4-pregnenolone Molecular Weight:320.502
61574-54-7 Molecular Info »Cas No|Cas Number|CAS Registry Number:1766-41-2 .Chemical Name|Molecular Name:perfluorotetracosane Formulanor:C24F50 Synonyms:Tetracosane,1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21,22,22,23,23,24,24,24-pentacontafluoro, MFCD00009915, perfluoro-n-tetracosane, perfluorotetracosane Molecular Weight:1238.18
1766-41-2 Molecular Info »Cas No|Cas Number|CAS Registry Number:84896-72-0 .Chemical Name|Molecular Name:Perchlorate ionophore I Formulanor:C44H28Cl3N4P Synonyms:(1Z,6Z,12Z,17Z)-22,22-Dichloro-2,7,12,17-tetraphenyl-21,23,24,25-tetraaza-22-phosphoniahexacyclo[9.9.3.1.1.0.0]pentacosa-1,3(25),4,6,8,10,12,14,16(24),17,19-undecaene chloride Molecular Weight:750.053
84896-72-0 Molecular Info »Cas No|Cas Number|CAS Registry Number:186348-23-2 .Chemical Name|Molecular Name:Ortataxel Formulanor:C44H57NO17 Synonyms:Bay-59-8862, Hexanoic acid, 3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-5-methyl-, (3aS,4R,7R,8aS,9S,10aR,12aS,12bR,13S,13aS)-7,12a-bis(acetyloxy)-13-(benzoyloxy)-3a,4,7,8,8a,9,10,10a,12,12a,12b,13-dodecahydro-9-hydroxy-5,8a,14,14-tetramethyl-2,8-dioxo-6,13a-methano-13aH-1,3-dioxolo[8,9]cyclodeca[1,2-d][1]benzoxet-4-yl ester, (2R,3S)-, .13-(N-Boc-, (1S,2S,3R,4S,7R,9S,10S,12R,15R,16S)-4,12-Diacetoxy-9-hydroxy-15-{[(2R,3S)-2-hydroxy-5-methyl-3-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)hexanoyl]oxy}-10,14,20,20-tetramethyl-11,18-dioxo-6,17,19-trio ;xapentacyclo[11.6.1.0.0.0]icos-13-en-2-yl benzoate, Ortataxel Molecular Weight:871.92
186348-23-2 Molecular Info »Cas No|Cas Number|CAS Registry Number:52-78-8 .Chemical Name|Molecular Name:norethandrolone Formulanor:C20H30O2 Synonyms:(17α)-17-Hydroxy-19-norpregn-4-en-3-one, Estr-4-en-3-one, 17-ethyl-17-hydroxy-, (17β)-, Ethylnortestosteron, SC 5914, Solevar, Nilevar, norethandrolone, EINECS 200-153-5, 19-Nor-17α-pregn-4-en-3-one, 17-hydroxy-, 19-Norpregn-4-en-3-one, 17-hydroxy-, (17α)-, Nileva, 17a-Ethyl-17-hydroxy-4-norandrosten-3-one, 17-Ethyl-19-nortestosterone, noretandrolon, 17a-Ethyl-19-nortestosterone, Estr-4-en-3-one, 17α-ethyl-17-hydroxy-, Pronabol, 17α-Ethyl-19-nortestosterone, MFCD00198409, 17a-Ethyl-17-hydroxy-19-norandrost-4-en-3-one, 17-ENT Molecular Weight:302.451
52-78-8 Molecular Info »Cas No|Cas Number|CAS Registry Number:854601-60-8 .Chemical Name|Molecular Name:m-PEG11-Amine Formulanor:C23H49NO11 Synonyms:2,5,8,11,14,17,20,23,26,29,32-Undecaoxatetratriacontan-34-amine, mPEG11-NH2, 2,5,8,11,14,17,20,23,26,29,32-Undecaoxatetratriacontan-34-amine Molecular Weight:515.635
854601-60-8 Molecular Info »Cas No|Cas Number|CAS Registry Number:75801-95-5 .Chemical Name|Molecular Name:Momordicoside A Formulanor:C42H72O15 Synonyms:(1S,4S,9β,17ξ,22S,23R,24R)-22,23,24,25-Tetrahydroxy-9,10,14-trimethyl-4,9-cyclo-9,10-secocholest-5-en-1-yl 6-O-β-D-glucopyranosyl-β-D-glucopyranoside Molecular Weight:817.012
75801-95-5 Molecular Info »Chemical products are described in many different ways including chemical structures, generic, molecular formulas, systematic, common, and trade names. The CAS (Chemical Abstracts Service) Registry Number (Cas No or Cas Number) is a unique identifier which is a unique and unambiguous identifier for a specific substance that allows clear communication and, with the help of CAS scientists, links together all available data and research about that substance. Governmental agencies rely on CAS Registry Numbers for substance identification in regulatory applications because they are unique, easy validated, and internationally recognized.You can search the Chemical compounds's molecular information with the Cas Registry Number.You can also Search Cas Number with Chemical Name or formulas.The most complete and comprehensive Cas number lookup on Molecularinfo.com.