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Along with our specialty dyes and materials, H.W. Sands Corp. also offers a multitude of CAS Registered chemicals for those looking to create a particular formulation. For further details, please contact our Customer Satisfaction Team for assistance.


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Catalog Number Product Name Application Abs. Max. (nm)
2-[3-(3-Ethyl-5-methylbenzothiazol-2(3H)-2-ylidene)-2-methyl- 1-propenyl]-5-phenyl-3-(4-sulfobutyl)benzoxazolium hydroxide, inner salt CAS Registered Chemical 527
5,5'-Dichloro-3,3'-diethyl thiacarbocyanine CAS Registered Chemical 562
5-Chloro-3-ethyl-2-{2-[3-(2-[5-chloro-3-ethyl-2- benzothiazolinylidene]ethylidene)-2-(N,N- diphenylamino)cyclopenenyl)]ethenyl}benzothiazolium perchlorate CAS Registered Chemical 800
1-Formyl-2-p-Tolylhydrazine CAS Registered Chemical
5-Chloro-2-(2-[(5-chloro-3-(3-sulfopropyl)-2(3H)- benzoxazolylidene)methyl]- 1-butenyl)-3-(3-sulfopropyl)- benzoxazolium inner salt, sodium salt CAS Registered Chemical 496
3-Ethyl-2-[4-oxo-3-ethyl-5-[3-ethoxy-4-(3-ethyl-5-methyl- dihydrobenzthiazolyliden)-butadienyliden]-dihydro- thiazolidenmethyl]-4,5-diphenyl-thiazolium-iodide CAS Registered Chemical 660
Benzothiazolium, 6-methoxy-5-methyl-2-(2-((6-methoxy-5-methyl- 3-(3-sulfopropyl)-2(3H)-benzothiazolylidene)methyl)-1- butenyl)-3-(3-sulfopropyl) hydroxide, inner salt, triethylamine salt CAS Registered Chemical 568
2-[7-[1,3-dihydro-1,1-dimethyl-3-(4-sulfobutyl)-2H- benz[e]indol-2-ylidene]-1,3,5-heptatrienyl]-1,1-dimethyl-3-(4- sulfobutyl)-1H-benz[e]indolium, inner salt CAS Registered Chemical 783
5-Chloro-3-(4-sulfobutyl)-2-{2-[(5-chloro-3-(4-sulfobutyl)-2- benzoxazolinylidene) methyl]-1-butenyl} benzoxazolium hydroxide, inner salt, compd. with triethylamine CAS Registered Chemical 496
5-Cyano-2-[3-(5-cyano-1,3-diethyl-1,3-dihydro-2H-benzimidazol-2-ylidene)-1-propenyl]-1-ethyl-3-(4-sulfobutyl)-1H-benzimidazolium hydroxide inner salt CAS Registered Chemical 513
3,3′-Dihexyloxacarbocyanine iodide CAS Registered Chemical 485
1H-Benz(e)indolium, 2-(2-(3-((1,3-dihydro-1,1-dimethyl-3-(3-sulfopropyl)-2H-benz(e)indol-2-ylidene)ethylidene)-2-(4-(ethoxycarbonyl)-1-piperazinyl)-1-cyclopenten-1-yl)ethenyl)-1,1-dimethyl-3-(3-sulfopropyl)-, hydoxide, inner salt, N, N-diethanamine (1:1) CAS Registered Chemical 745
1,1′-Diethyl-2,2′-dicarbocyanine iodide CAS Registered Chemical 707
1-Butyl-2-[3-(1-butyl-1H-benzo[cd]indol-2-ylidene)-propenyl]-benzo[cd]indolium tetrafluoroborate CAS Registered Chemical 758
2-[5-(1,3-Dihydro-3,3-dimethyl-1-butyl-2H-benz[e]indol-2-ylidene)-prop-1-enyl]-3,3-dimethyl-1-butyl-3H-indolium Hexafluorophosphate CAS Registered Chemical 586
5-Chloro-2-(2-[(5-Chloro-3-(3-Sulfopropyl)-2(3H)-Benzoxazolylidene)Methyl]- 1-Butemyl)-3-(3-Sulfopropyl)- Benzoxazolium Inner Salt Triethylamine Salt CAS Registered Chemical 496
2,5-Bis-[2-(1,3,3-trimethyl-1,3,-dihydro-indol-2-ylidene)-ethylidene]-cyclopentanone CAS Registered Chemical 572
1-Ethyl-4-[(5-[1-ethyl-4(1H)-quinolinylidene])-1,3-pentadienyl]quinolinium iodide CAS Registered Chemical 814
1,3-Bis-(1,3,3-trimethyl-1,3-dihydro-indol-2-ylidene)-propan-2-one CAS Registered Chemical 410
Benzoxazolium, 5-phenyl-2-[2-[[5-phenyl-3-(3-sulfobutyl)-2(3H)-benzoxazolylidene]methyl]-1-butenyl]-3-(3-sulfobutyl)-, inner salt, compd. with N,N-diethylethaneamine CAS Registered Chemical 504
3,3'-Diethylthiacarbocyanine perchlorate CAS Registered Chemical 760
3-Ethyl-2-[3-(3-ethyl-2(3H)-benzoxazolylidene)-1-propenyl]benzoxazolium iodide CAS Registered Chemical 483
1,1′-Diethyl-2,2′-quinotricarbocyanine iodide CAS Registered Chemical 743
9-Ethyl-3-(2-hydroxyethyl)-5,5'-dimethyl-3'-(3- sulfopropyl)thiacarbocyanine hydroxide, inner salt CAS Registered Chemical 560
5,6-Dimethyl-2-(3-(5,6-dimethyl-3-ethyl-2- benzoxazolinylidene)-1-propenyl)-3-ethyl benzoxazolium iodide CAS Registered Chemical 495
5-[(3-Ethyl-2(3H)-benzoxazolylidene)ethylidene]-4-oxo-2-thioxo 3- thiazolidineacetic acid CAS Registered Chemical 486
3H-Indolium, 2-(3-(1,3-dihydro-3,3-dimethyl-1-pentyl-2H-inol-2-ylidine)-1-propenyl)-3,3-dimethyl-1-pentyl-,idodie CAS Registered Chemical 548
1,1',3,3','3'-Hexamethylindotricarbocyanine perchlorate CAS Registered Chemical 750
5-[(3-Ethyl-2-thiazolidinylidene)ethylidene]-4-oxo-2-thioxo-3- thiazolidineacetic acid piperidine salt CAS Registered Chemical 480
3-Ethyl-2-[3-(3-ethyl-2-thiazolidinylidene)-1-propenyl]-5,6-dimethyl- benzoxazolium iodide CAS Registered Chemical 472
2(3-ethyl-4-oxo-5-(2-(1-ethyl-quinoline-4-yliden)-ethen-1- yliden)-1,3-thiazolidin-2-yliden-methyl)-3-ethyl-4,5-diphenyl- 1,3-thiazolium-bromide CAS Registered Chemical 652
5-Chloro-2-[(5-chloro-3-(4-sulfobutyl)-2(3H)- benzothiazolylidene)-2- methyl- 1-propenyl]-3-(4-sulfobutyl)- benzothiazolium hydroxide, inner salt, sodium salt CAS Registered Chemical 548
Platinum containing IR dye CAS Registered Chemical 864
4,5,4',5'-Dibenzo-1,1',3,3,3',3'-hexa-methylindadicarbocyanine Iodide CAS Registered Chemical 676
2-[2-[3-[(1,3-dihydro-3,3-dimethyl-1-propyl-2h-indol-2-ylidene)ethylidene]-2-phenoxy-1-cyclohexen-1-yl]ethenyl]-3,3-dimethyl-1-propylindolium perchlorate CAS Registered Chemical 768
2-[5-(1,3-dihydro-1,1-dimethyl-3-propyl-2H-indol-2-ylidene)-1,3-pentadienyl]-1,1-dimethyl-3-propyl-1H-indolium iodide CAS Registered Chemical
5-(1-Methyl-2-(3-methyl-2-thiazolidinylidene)ethylidene)-4- oxo- 2-thioxo-3- thiazolidineacetic acid piperidine salt CAS Registered Chemical 486
1-Methyl-3-sulfopropyl-5-trifluoromethyl-2-(3-(1-methyl-3- sulfopropyl-5-trifluoromethyl benzimidazolinylidene)-1- propenyl) benzimidazolium hydroxide, inner salt, sodium salt CAS Registered Chemical 498
2-Ethylhexyl-2-cyano-4-(3-methyl-2-oxazolidinylidene)-2-butenoate CAS Registered Chemical 370
Cyclobutenediylium, 1,3-bis[2,3-dihydro-2,2-bis(hydroxymethyl)-1H-perimidin-6yl]-2,4-dihydroxy-, bis(inner salt) CAS Registered Chemical 811
3-Butyl-2-[5-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-penta-1,3-dienyl]-1,1-dimethyl-1H-benzo[e]indolium tetrafluoroborate CAS Registered Chemical 660
3-(3-Sulfopropyl)-2-({3-[3-(3-sulfopropyl)-2- benzothiazolinylidene] methyl}-1-butenyl) benzothiazolium hydroxide, inner salt, compd. with triethylamine; CAS Registered Chemical 547
2-[3-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-propenyl]-1,3,3-trimethyl-3H-indolium perchlorate CAS Registered Chemical 545
2-[2-[2-Chloro-3-[2-(1,3-Dihydro-1,1,3-Trimethyl-2H-Benzo[e]-Imdol-...]-1-Cyclohexen-1-yl]-Ethenyl]-1,1,3-Trimethyl-1h-Benzo[e]Indolium Chloride CAS Registered Chemical 813
5-Chloro-2-(2-[(5-chloro-3-(3-sulfobutyl)-2(3H)-benzoxazolylidene)methyl]-1-butenyl)-3-(3-sulfopropyl)-benzoxazolium, inner salt triethylamine salt CAS Registered Chemical 500
4-Chlorobenzene-Sulfonmethyl-Ester, 4-Chlorobenzene-Sulfonmethyl-Ester CAS Registered Chemical 405
1,3,3-Trimethyl-2-[3-methyl-5-(1,3,3-trimethyl-3H- benz[e]indolin-2- yliden)-1,3-pentadienyl]-3H-benz[e]indolium perchlorate; Dye 392 CAS Registered Chemical 671
5,6-Dichloro-2-(3-(5,6-dichloro-1,3-diethyl-1,3-dihydro-2H-benzimidazol-2-ylidene)-1-propenyl)-1-ethyl-3-(3-sulfobutyl)-1H-benzimidazolium, inner salt CAS Registered Chemical 517
4-Methyl-2-(3-(3-benzyl-2-benzoxozolinylidene)-1-propenyl)-3- benzyl thiazolinium bromide CAS Registered Chemical 515
5-[(Phenylamino)methylene]-3-(2-propenyl)-2-thioxo-4-thiazolidinone CAS Registered Chemical 410
Benzoxazolium,5-phenyl-2-[2-[[5-phenyl-3-(4-sulfobutyl)-2(3H)-benzoxazolylidene]methyl]-1-buten-1-yl]-3-(4-sulfobutyl)-,inner salt, sodium salt (1:1) CAS Registered Chemical 504
4,5-Benzo-1'-ethyl-3-methylchinathiacarbocyanine iodide CAS Registered Chemical 654
5-[2,5-Bis-[2-(1,3,3-trimethyl-1,3-dihydro-indol-2-ylidene)-ethylidene]-cyclopentylidene]-1,3-dimethyl-pyrimidine-2,4,6-trione CAS Registered Chemical 777
Platinum dye CAS Registered Chemical 803
2-(3-(1-Butyl-3,3-dimethylindol-2-ylidene)propenyl)-1-butyl-3,3-dimethylindolium iodide CAS Registered Chemical 545
2-(3-(1-Butyl-3,3-dimethyl-benzo[e]indol-2-ylidene)-prop-1-enyl)-1-butyl-3,3-dimethyl-benzo[e]indolium-iodide CAS Registered Chemical 587
2,7'-Dichlorofluorescein diacetate CAS Registered Chemical
Benzothiazolium, 5-chloro-2-(2-((5-chloro-3-(3-sulfopropyl)-2(3H)-benzothiazolylidene)methyl)-1-butenyl)-3-(3-sulfopropyl)-, inner salt, compd. with N,N-diethylethanamine (1:1) CAS Registered Chemical 550
3-(4-Sulfopropyl)-2-{2-([3-(4-sulfopropyl)-2-naphtho [1,2-d] thiazolinylidene] methyl)-1-butenyl} naphtho [1,2-d] thiazolium hydroxide inner salt, triethylamine salt CAS Registered Chemical 579
2-[2-[2-Chloro-3-[(1,3-dihydro-1-(4-sulfobutyl)-3,3-dimethyl-2H-indol-2-ylidene)ethylidene]-1-cyclopenten-1-yl]ethenyl]-1-(4-sulfobutyl)-3,3-dimethylindolium, innersalt, sodium salt CAS Registered Chemical 806
1-Ethyl-2-[7-(1-ethyl-2(1H)-quinolinylidene)-1,3,5- heptatrienyl]quinolinium 4-methylbenzenesulfonate CAS Registered Chemical 816
1-(1-Benzyl-quinolin-4-ylidenemethyl)-3-(1-benzyl-quinolinium-4-yl-methylene)-2-oxo-cyclobutene-4-olate CAS Registered Chemical 844
4,4'-Bis[1-(4-sulfophenyl)-3-carboxypyrazol-5- one] trimethine - tetrasodium salt; Ononole Red CAS Registered Chemical 536
3,9-Diethyl-3'carboxymethyl-5,5'-dimethyl-9-benzothiaxolo- trimethinecyanine CAS Registered Chemical 552
1-Carboxymethyl-3-phenyl-5-(2-(3-ethyl-2-benzoxazolinylidene)- ethylidene)-thiohydantoin CAS Registered Chemical 473
5,6-Dichloro-2-(3-(5,6-dichloro-1-ethyl-1,3-dihydro-3-(3-sulfobutyl)-2H-benzimidazol-2-ylidene)-1-propenyl)-1-ethyl-3-(3-sulfobutyl)-1H-benzimidazolium triethylamine salt CAS Registered Chemical 555
Substituted benzothiazole CAS Registered Chemical 661
797nm Dye CAS Registered Chemical 795
3,3′-Dipropylthiadicarbocyanine iodide CAS Registered Chemical 651
1,1'-Diethyl-2,2'- carbocyanine iodide CAS Registered Chemical 614
2-[7-(1,3-Dihydro-3,3-dimethyl-1-propyl-2H-indol-2-ylidene)-1,3,5-heptatrienyl]-3,3-dimethyl-1-propyl-3H-indolium ClO4; (9CI) 3H-Indolium, 2-[7-(1,3-dihydro-3,3-dimethyl-1-propyl-2H-indol-2-ylidene)-1,3,5-heptatrienyl]-3,3-dimethyl-1-propyl-, perchlorate CAS Registered Chemical 745
2-[2-[3-[2-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-ethylidene]-2-(1-phenyl-1H-tetrazol-5-ylsulfanyl)-1-cyclohexen-1-yl]-ethenyl]-1,3,3-trimethyl-3H-indolium chloride CAS Registered Chemical 798
5-Chloro-3-(4-sulfobutyl)-2-{2-[(5-chloro-3-(4-sulfobutyl)-2- benzoxazolinylidene) methyl]-1-butenyl} benzoxazolium hydroxide, inner salt, compd. with triethylamine CAS Registered Chemical 496
1-Ethyl-2-(5-(1-ethyl-1,3-benzthiazoline-2-yliden)-hepta-1,3,5- trien-1-yl)-1,3-benzthiazolium chloride CAS Registered Chemical 759
5,5'-Dimethoxy-3,3'-bis-(3-sulfopropyl)thiacyanine hydroxide, inner salt, triethylammonium salt CAS Registered Chemical 440
3-Benzyl-2-[3-(3-benzyl-2-benzoxazolinylidene)-1-propenyl] benzoxazolium bromide CAS Registered Chemical 486
3-Ethyl-2-(5-(3-ethyl- 3H-naphtho[2,1-d]thiazol-2-ylidene)- penta-1,3-dienyl)-naphtho[2,1-d]thiazoliumchloride CAS Registered Chemical 690
2-(3-(5-Chloro-1-sulfo propyl-3-ethyl-6-trifluoromethyl-2- benzimidazolinylidene) propenyl)-5-chloro-3-ethyl-1- sulfopropyl-6-trifluoromethyl benzimidazolium hydroxide, inner salt, sodium salt CAS Registered Chemical 510
Benzothiazolium, 3-ethyl-2[[7-[[3-ethyl-5-(methylthio)-2(3H)-benzothiazolylidene)methyl]-4,4a,5,6-tetrahydro-2(3H)-napthalenylidene]methyl]-5-(methylthio)-, iodide CAS Registered Chemical 758
Nickel dye CAS Registered Chemical 925
4-[2-(2-chloro-3-[(2,6-diphenyl-4H-thiopyran-4-ylidene)ethylidene]-1-cyclohexen-1-yl)ethenyl]-2,6-diphenyl thiopyrylium tetrafluoroborate CAS Registered Chemical 1065
2-[2-[2-Chloro-3-[2-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2- ylidene)-ethylidene]-1-cyclohexen-1-yl]ethenyl]-1,3,3- trimethylindolium-4-methylbenzenesulonate CAS Registered Chemical 775
3,3'-Diethylthiadicarbocyanine Iodide CAS Registered Chemical 651
3,3′-Dipropyloxacarbocyanine iodide CAS Registered Chemical 482
1,3-Bis[2,3-dihydro-2,2-bis[[(1-oxohexyl)oxy]methyl]-1H-perimidin-6-yl]-2,4-dihydroxy- cyclobutenediylium, inner salt. CAS Registered Chemical 811
2-[2-[2-Chloro-3-[2-(1,3-dihydro-1,1-dimethyl-3-(4-sulfobutyl)- 2H-benz[e]indol-2-ylidene)ethylidene]-1-cyclohexen-1- yl]ethenyl]-1,1-dimethyl-3-(4-sulfobutyl)-1H-benz[e]indolium, innersalt, sodium salt CAS Registered Chemical 819
Benzoselenazolium,3-ethyl-2-[3-(3-ethyl-2(3H)-benzoselenazolylidene)-1-propenyl]-, iodide (9CI) CAS Registered Chemical 573
1,4-Dihydro-2,6-dimethyl-1,4-diphenyl-3,5-pyridinecarboxylic acid, dimethyl ester CAS Registered Chemical 339
2-(3-(3-(4-Sulfobenzyl)-1-methyl-5-trifluoromethyl-2- benzimidazolinylidene)-1-propenyl)-3-(4-sulfobenyl)-1-methyl-5- trifluoromethyl benzimidazolium inner salt, sodium salt CAS Registered Chemical 497
1,1-Dimethyl-3-butyl-2-[5-(1,3-dihydro-1-propyl-3,3-dimethyl-2H-indol-2-ylidene)-1,3-pentadienyl]-1H-benz[e]indolium perchlorate; 3-Butyl-2-[5-(1,3-dihydro-3,3-dimethyl-1-propyl-2H-indol-2-ylidene)-1,3-pentadienyl]-1,1-dimethyl-1H-benz[e]indolium, perchlo CAS Registered Chemical 660
2-[2-[2-(1,3-dimethyl-2H-pyrimidin-2,4,6-trione-5-yl)-3-[2-(1,3-dihydro-3-methyl-1,1-dimethyl-2H-benz[e] indol-2-ylidene)ethylidene]-1-cyclopenten-1-yl]ethenyl]-3-methyl-1,1-dimethyl-1H-benz[e]indolium inner salt CAS Registered Chemical 811
Bis(Dithiobenzil) Nickel CAS Registered Chemical 856
2-[2-[2-Chloro-3-[2-(1,3-dihydro-1,1dimethyl-3-ethyl-2H- benz[e]indol-2-ylidene)ethylidene]-1-cyclohexen-1-yl]ethenyl]- 1,1-dimethyl-3-ethyl-1H-benz[e]indolium Tetrafluoroborate CAS Registered Chemical 816
1-Methyl-4-(4-nitro-styryl)-pyridinium iodide CAS Registered Chemical
Benzenaminium, N,N'-2,5-cyclohexadiene-1,4-diylidenebis[4-(dibutylamino)-N-[4-(dibutylamino)phenyl]-, di[perchlorate(1-)] CAS Registered Chemical 1072
9-Ethyl-3-(2-hydroxyethyl)-5,5'-dimethyl-3'-(3- sulfooxybutyl)thiacarbocyanine hydroxide, inner salt CAS Registered Chemical 555
2-(2-((5,6-Dimethoxy-3-(3-0sulfopropyl)-2(3H)-benzothiazolylidene)methyl)-1-butenyl)-5-phenyl-3-(3-sulfobutyl)-benzoxazolium, inner salt, free acid CAS Registered Chemical 537
3-Methyl-2-(3-[3-methyl-2(3H)-benzoxazolylidene]-1-propenyl)-benzoxazolium iodide CAS Registered Chemical 482
2-[2-[2-(4-morpholino)-3-[(1,3-dihydro-3,3-dimethyl-1-(3-sulfopropyl)-2H-indol- 2-ylidene)ethylidene]-1-cyclopenten-1-yl]ethenyl]-3,3-dimethyl-1-(3-sulfopropyl)indolium, inner salt, triethylammonium salt CAS Registered Chemical 559
5,6-Dichloro-1-ethyl-3-sulfobutyl-2-(3-(5,6-dichloro-1-ethyl- 3-sulfobutyl benzimidazolinylidene-1-propenyl) benzimidazolium hydroxide, inner salt, sodium salt CAS Registered Chemical 516
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