Chemical Database Search   Join now   Sign in

Abacavir 136470-78-5
Abamectin 71751-41-2
Abscisic acid 14375-45-2
Acamprosate calcium 77337-73-6
Acarbose 56180-94-0
Acebutolol 37517-30-9
Acebutolol hydrochloride 34381-68-5
Aceclofenac 89796-99-6
Aceglutamide 2490-97-3
Acemetacin 53164-05-9
Acenaphthene 83-32-9
Acenaphthenequinone 82-86-0
Acesulfame 33665-90-6
Acetal 105-57-7
Acetaldehyde 75-07-0
Acetaldehyde benzyl ethyl acetal 66222-24-0
Acetaldoxime 107-29-9
Acetamide 60-35-5
3'-Acetamidoacetophenone 7463-31-2
2-Acetamidoacrylic acid 5429-56-1
6-Acetamido-2-amino-4,5,6,7-tetrahydrobenzothiazole 104617-51-8
5-Acetamidoanthranilic acid 50670-83-2
4-Acetamidobenzaldehyde 122-85-0
4-Acetamidobenzenesulfonamide 121-61-9
4-Acetamidobenzenesulfonyl azide 2158-14-7
2-(4-Acetamidobenzylidene)malononitrile 26088-79-9
5-(Acetamido)-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide 31127-80-7
4-Acetamido-2-chloropyridine 13602-82-9
2-Acetamido-2-deoxy-D-glucose 7512-17-6
1-Acetamido-7-hydroxynaphthalene 6470-18-4
N-(2-Acetamido)iminodiacetic acid 26239-55-4
2-Acetamido-4-methylphenol 6375-17-3
3-Acetamido-5-nitrobenzoic acid 5464-58-4
4-Acetamidophenol 103-90-2
2-Acetamidophenol 614-80-2
3-Acetamidophenylboronic acid 78887-39-5
4-Acetamidophenylboronic acid 101251-09-6
2-Acetamidophenylboronic acid 169760-16-1
2,2'-[(3-Acetamidophenyl)imino]diethyl diacetate 27059-08-1
6-Acetamino-2,4-dichloro-3-methylphenol 55202-11-4
Acetamiprid 135410-20-7
Acetamiprid 160430-64-8
Acetanilide 103-84-4
Acetazolamide 59-66-5
Acetic acid glacial 64-19-7
Acetic anhydride 108-24-7
Acetoacetamide 5977-14-0
Acetoacetanilide 102-01-2
o-Acetoacetaniside 92-15-9
N-Acetoacetcresidine sulfonic acid sodium salt 133167-77-8
5-Acetoacetlamino benzimdazolone 26576-46-5
Acetoacet-p-phenetidide 122-82-7
3-Acetoacetylamino-4-methoxytoluene-6-sulfonic acid ammonium salt 72705-22-7
N-(Acetoacetyl)anthranilic acid 35354-86-0
N-Acetoacetyl cresidine 85968-72-5
Acetochlor 34256-82-1
Acetohydroxamic acid 546-88-3
1'-Acetonaphthone 941-98-0
2-Acetonaphthone 93-08-3
Acetone 67-64-1
Acetone cyanohydrin 75-86-5
1,3-Acetonedicarboxylic acid 542-05-2
Acetone diphenylamine 68412-48-6
Acetone oxime 127-06-0
Acetone thiosemicarbazone 1752-30-3
Acetonitrile 75-05-8
5-Acetonyl-2-methoxybenzene sulfonamide 116091-63-5
2-Acetonyloxy-3,4-difluoro nitrobenzene 82419-32-7
Acetophenone 98-86-2
Acetophenone oxime 613-91-2
Acetovanillone 498-02-2
Acetoxyacetic acid 13831-30-6
3'-Acetoxyacetophenone 2454-35-5
Acetoxyacetyl chloride 13831-31-7
4-Acetoxy-2-azetidinone 28562-53-0
9-[(2-Acetoxyethoxy)methyl]-N2-acetylguanine 75128-73-3
4-Acetoxyindole 5585-96-6
1-Acetoxy-2-met hoxynaphthalene 5697-02-9
7-Acetoxy-4-methylcoumarin 2747-05-9
2-Acetoxy-2-methylpropionyl bromide 40635-67-4
2-Acetoxy-2-phenylacetyl chloride 1638-63-7
2-(4-Acetoxyphenyl)benzothiophene 132932-62-8
1-(Acetoxy)pyrrolidine-2,5-dione 14464-29-0
(3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one 76855-69-1
3-Acetoxy-o-toluic acid 168899-58-9
Acetrizoic acid 85-36-9
N-Acetyl-cysteine 616-91-1
3-Acetyl-2,4-dimethylpyrrole 2386-25-6
5-Acetyl-2,4-dimethylthiazole 38205-60-6
3-Acetyl-2,5-dimethylthiophene 2530-10-1
Acetylacetaldehyde dimethyl acetal 5436-21-5
Acetylacetonatobis(ethylene)rhodium(I) 12082-47-2
N-Acetyl-DL-alanine 1115-69-1
5-Acetylamido-2-chloroaniline 51867-83-5
4-Acetylamino-N-(2'-aminophenyl)benzamide 112522-64-2
p-Acetylamino benzoic acid 556-08-1
4-Acetylamino-2-(bis(2-hydroxyethyl)amino)anisole 24530-67-4
4-Acetylamino-2-(diallylamino)anisole 51868-45-2
4-Acetylamino-2-(diethylamino)anisole 19433-93-3
7-(Acetylamino)-4-hydroxy-2-naphthalenesulfonic acid 6334-97-0
5-(Acetylamino)isophthalic acid 6344-50-9
2-Acetylamino-5-mercapto-1,3,4-thiadiazole 32873-56-6
2-Acetylaminophenylboronic acid pinacol ester 380430-61-5
N-Acetylanthranilic acid 89-52-1
Nalpha-Acetyl-D-asparagine 26117-27-1
N-Acetyl-L-asparagine 4033-40-3
N-Acetyl-DL-aspartic acid 2545-40-6
N-Acetyl-L-aspartic acid 997-55-7
4-Acetylbenzenesulfonyl chloride 1788-10-9
4-Acetylbenzenesulphonamide 1565-17-9
2-Acetylbenzimidazole 939-70-8
6-Acetyl-1,4-benzodioxane 2879-20-1
2-Acetylbenzo[b]thiophene 22720-75-8
3-Acetyl-2-benzoxazolinone 24963-28-8
4-Acetylbiphenyl 92-91-1
Acetyl bromide 506-96-7
1-Acetyl-5-bromo-4-chloro-1H-indol-3-yl acetate 3030-06-6
2-Acetyl-4-butyramidophenol 40188-45-2
2-Acetylbutyrolactone 517-23-7
O-Acetyl-L-carnitine hydrochloride 5080-50-2
N-Acetyl carnosine 56353-15-2
Acetyl cedrene 32388-55-9
Acetyl chloride 75-36-5
3-Acetyl-1-chlorocarbonyl-2-imidazolidone 41730-71-6
5-Acetyl-3-chloro-10,11-dihydro-5H-dibenz[b,f]azepine 25961-11-9
2-Acetyl-3-(2-chlorophenyl)acrylic acid methyl ester 67593-46-8
N4-Acetylcytidine 3768-18-1
N4-Acetylcytosine 14631-20-0
3-Acetyl-2,5-dichlorothiophene 36157-40-1
13-Acetyl-9-dihydrobaccatin III 142203-65-4
N-Acetyl-3,5-dinitro-L-tyrosine 20767-00-4
Acetylene 74-86-2
Acetylenedicarboxylic acid 142-45-0
Acetylenedicarboxylic acid monopotassium salt 928-04-1
N-Acetylethylenediamine 1001-53-2
Acetylferrocene 1271-55-2
2-Acetylfuran 1192-62-7
N-Acetyl-D-galactosamine 14215-68-0
N-Acetyl-D-glutamic acid 19146-55-5
N-Acetyl-L-glutamic acid 1188-37-0
N-Acetylglycine 543-24-8
1-Acetylimidazole 2466-76-4
1-Acetyl-2-imidazolidinone 5391-39-9
5-Acetylindole 53330-94-2
3-Acetylindole 703-80-0
Acetyl ketene 674-82-8
Acetylleucine 99-15-0
N-Acetyl-L-leucine 1188-21-2
N-Acetyl-D-mannosamine 7772-94-3
N-Acetyl-DL-methionine 1115-47-5
N-Acetyl-L-methionine 65-82-7
N-Acetyl-4-methoxymetanilyl chloride 3746-67-6
2-Acetyl-6-methoxynaphthalene 3900-45-6
2-Acetyl-3-methylpyrazine 23787-80-6
2-Acetyl-4-methylpyridine 59576-26-0
2-Acetyl-5-methylthiophene 13679-74-8
2-Acetyl-3-methylthiophene 13679-72-6
N-Acetylmorpholine 1696-20-4
N-Acetylneuraminic acid 131-48-6
N-Acetylneuraminic acid methyl ester 50998-13-5
3-Acetyl-2-oxazolidinone 1432-43-5
2-[(1-Acetyl-2-oxopropyl)thio]-N-cyclohexyl-1H-benzimidazole-1-carboxamide 98183-15-4
2-[(Acetyloxy)methoxy]ethyl acetate 59278-00-1
2-Acetyloxy-2-phenyl-acetic acid 5438-68-6
2-Acetylphenothiazine 6631-94-3
N-Acetyl-L-phenylalanine 2018-61-3
4-Acetylphenylboronic acid 149104-90-5
1-Acetyl-2-phenylhydrazine 114-83-0
1-Acetylpiperazine 13889-98-0
4-(1-Acetylpiperazin-4-yl)phenol 67914-60-7
1-Acetylpiperidin-4-amine 160357-94-8
1-Acetyl-4-piperidinecarboxylic acid 25503-90-6
N-Acetyl-4-piperidone 32161-06-1
N-Acetyl-L-prolinamide 16395-58-7
N-Acetyl-L-proline 68-95-1
3-Acetyl-1-propanol 1071-73-4
Acetylpyrazine 22047-25-2
3-Acetylpyridine 350-03-8
2-Acetylpyridine 1122-62-9
4-Acetylpyridine 1122-54-9
2-Acetyl pyrrole 1072-83-9
5-Acetylsalicylamide 40187-51-7
Acetylsalicylic acid 50-78-2
N-Acetylsulfanilyl chloride 121-60-8
4-Acetyl-2,3,4,5-tetrahydro-1H-1,4-benzodiazepine 57756-36-2
3-Acetylthianaphthene 1128-05-8
2-Acetylthiazole 24295-03-2
2-Acetyl-2-thiazoline 29926-41-8
(2S)-1-(3-Acetylthio-2-methyl-1-oxopropyl)-L-proline 64838-55-7
2-[(Acetylthio)methyl]-phenylpropionic acid 91702-98-6
D-(-)-3-Acetylthio-2-methylpropionic acid 76497-39-7
2-Acetylthiophene 88-15-3
3-Acetylthiophene 1468-83-3
5-Acetyl-2-thiopheneboronic acid 206551-43-1
Acetyl tributyl citrate 77-90-7
Acetyltropylic chloride 14510-37-3
N-Acetyl-L-tryptophan 1218-34-4
N-Acetyl-DL-tryptophan 87-32-1
N-Acetyl-L-tyrosine 537-55-3
N-Acetyl-L-valine 96-81-1
Aciclovir sodium 69657-51-8
Acid Black 2 8005-03-6
Acid blue 1 129-17-9
Acid Blue 129 6397-02-0
Acid Blue 142 61723-94-2
Acid Blue 74 860-22-0
Acid Blue 83 6104-59-2
Acid Blue 9 2650-18-2
Acid Blue 90 6104-58-1
Acid Blue 93 28983-56-4
Acid Brown 14 5850-16-8
Acid Green 1 19381-50-1
Acid Green 25 4403-90-1
Acid Green 50 3087-16-9
Acid modified starch 65996-63-6
Acid Orange 24 1320-07-6
Acid Orange 7 633-96-5
Acid Red 111 6358-57-2
Acid Red 18 2611-82-7
Acid Red 27 915-67-3
Acid Red 51 568-63-8
Acid Red 73 5413-75-2
Acid Red 87 548-26-5
Acid Red 92 18472-87-2
Acid Violet 17 4129-84-4
Acid Violet 48 12220-51-8
Acid Violet 49 1694-09-3
Acid Yellow 23 1934-21-0
Acid Yellow 44 2429-76-7
Acifluorfen sodium 62476-59-9
Acifluorofen 50594-66-6
Acipimox 51037-30-0
Acitretin 55079-83-9
Aclatonium napadisilate 55077-30-0
Aconitine 302-27-2
Acrichin dihydrochloride 69-44-3
Acrivastine 87848-99-5
Acrolein 107-02-8
Acrolein diethyl acetal 3054-95-3
Acrolein dimethyl acetal 6044-68-4
Acrylamide 79-06-1
2-Acrylamide-2-methylpropanesulfonic acid 15214-89-8
2-Acrylamido-2-methylpropanesulfonic acid-acrylic acid copolymer 40623-75-4
Acrylates copolymer 25133-97-5
Acrylic acid 79-10-7
Acrylic acid-hydroxypropyl acrylate copolymer 55719-33-0
Acrylic acid maleic acid copolymer 29132-58-9
Acrylic anhydride 2051-76-5
Acrylonitrile 107-13-1
Acryloyloxyethyltrimethyl ammonium chloride 44992-01-0
Acrylyl chloride 814-68-6
1-Actamido-3,5-dimethyladmantane 19982-07-1
Actarit 18699-02-0
Actein 18642-44-9
Actidione 66-81-9
Actinomycin D 50-76-0
Activated carbon 64365-11-3
Acyclovir 59277-89-3
AD-67 Antidote 71526-07-3
1-Adamantanamine hydrochloride 665-66-7
Adamantane 281-23-2
1-Adamantaneacetic acid 4942-47-6
1-Adamantanecarboxylic acid 828-51-3
1,3-Adamantanediacetic acid 17768-28-4
1,3-Adamantanedicarboxylic acid 39269-10-8
1,3-Adamantanediol 17071-62-4
1-Adamantaneethanol 6240-11-5
1-Adamantanemethanol 770-71-8
2-Adamantanol 700-57-2
1-Adamantanol 768-95-6
2-Adamantanone 700-58-3
2-Adamantanone oxime 4500-12-3
N-(1-Adamantyl)acetamide 880-52-4
1-Adamantyl methyl ketone 1660-04-4
Adapalene 106685-40-9
Adefovir 106941-25-7
Adefovir dipivoxil 142340-99-6
Ademetionine 1,4-butanedisulfonate 101020-79-5
Ademetionine disulfate tosylate 97540-22-2
Adenine 73-24-5
Adenine hydrochloride 2922-28-3
Adenine phosphate 52175-10-7
Adenine phosphate 70700-30-0
Adenine sulfate 321-30-2
Adenosine 58-61-7
Adenosine 5'-monophosphate 61-19-8
Adenosine triphosphate 56-65-5
Adenosine 5'-triphosphate disodium salt 51963-61-2
Adenosine 5'-triphosphate disodium salt 987-65-5
S-Adenosyl-L-methionine 29908-03-0
S-Adenosyl-L-methionine tosylate 71914-80-2
Adiphenine hydrochloride 50-42-0
Adipic acid 124-04-9
Adipic dihydrazide 1071-93-8
Admire 105827-78-9
Adrafinil 63547-13-7
DL-Adrenalin 329-65-7
Adrenosterone 382-45-6
Adriamycin 23214-92-8
Afloqualone 56287-74-2
Agar 9002-18-0
Agmatine sulfate 2482-00-0
Agnuside 11027-63-7
Alachlor 15972-60-8
Alagebrium chloride 341028-37-3
D-Alaninamide 35320-22-0
L-Alaninamide 7324-05-2
L-Alaninamide hydrochloride 33208-99-0
beta-Alanine 107-95-9
L-Alanine 56-41-7
D-Alanine 338-69-2
DL-Alanine 302-72-7
L-Alanine benzyl ester hydrochloride 5557-83-5
L-Alanine benzyl ester 4-toluenesulfonate 42854-62-6
beta-Alanine benzyl ester p-toluenesulfonate salt 27019-47-2
L-Alanine methyl ester hydrochloride 2491-20-5
D-Alanine tert-butyl ester hydrochloride 59531-86-1
DL-Alaninol 6168-72-5
L-Alaninol 2749-11-3
Alantolactone 546-43-0
L-Alanyl-L-alanine 2392-61-2
D-Alanyl-D-alanine 923-16-0
Alanyl-glutamine 39537-23-0
L-Alanyl-L-leucine 3303-34-2
L-Alanyl-L-proline 13485-59-1
Alarelin 79561-22-1
Albendazole 54965-21-8
Albendazole S-oxide 54029-12-8
Albizziin 1483-07-4
Albuterol sulfate 51022-70-9
Alclometasone-17,21-dipropionate 66734-13-2
Alendronate sodium 121268-17-5
Alendronic acid 66376-36-1
Alfacalcidol 41294-56-8
Alfuzosin 81403-80-7
Alfuzosin hydrochloride 81403-68-1
Algestone 595-77-7
Algestone acetophenide 24356-94-3
Alibendol 26750-81-2
Alitame 80863-62-3
Alizapride 59338-93-1
Alizapride hydrochloride 59338-87-3
Alizarin Fluorine Blue 3952-78-1
Alizarin Red S 130-22-3
Alkylated diphenylamines 68921-45-9
Alkyl diphenyl phosphate 27460-02-2
Alkyl (C12-C14) glycidyl ether 68609-97-2
Allantoin 97-59-6
D-trans-Allethrin 28057-48-9
Allethrin 584-79-2
Allicin 539-86-6
D-Alloisoleucine 1509-35-9
Allopurinol 315-30-0
D(-)-allo-Threonine 24830-94-2
Allyl acetate 591-87-7
Allylacetic acid 591-80-0
Allyl alcohol 107-18-6
Allylamine 107-11-9
Allyl bromide 106-95-6
Allyl chloroacetate 2916-14-5
Allyl chloroformate 2937-50-0
Allyl cyanoacetate 13361-32-5
Allyl cyclohexylpropionate 2705-87-5
N-Allyl-2,2-dichloro-N-[3-(trifluoromethyl)phenyl]acetamide 61219-95-2
Allylestrenol 432-60-0
Allyl ether 557-40-4
Allyl glycidyl ether 106-92-3
D-Allylglycine 108412-04-0
L-Allylglycine 195316-72-4
Allyl heptanoate 142-19-8
Allyl hexanoate 123-68-2
2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one 29605-88-7
1-Allylimidazole 31410-01-2
Allyl isothiocyanate 57-06-7
Allylmagnesium chloride 2622-05-1
N-Allylmaleimide 2973-17-3
Allyl mercaptan 870-23-5
Allyl methacrylate 96-05-9
2-Allyloxyethanol 111-45-5
Allyloxypolyethyleneglycol 27274-31-3
2-Allyloxy-1,3,5-tribromobenzene 3278-89-5
Allylpalladium chloride dimer 12012-95-2
2-Allylphenol 1745-81-9
Allyl phenoxyacetate 7493-74-5
Allyl phenyl ether 1746-13-0
Allyl phenyl sulfone 16212-05-8
Allyl Propyl Disulfide 2179-59-1
Allylthiourea 109-57-9
Allyltriphenylphosphonium bromide 1560-54-9
Allyl triphenylphosphonium chloride 18480-23-4
Almitrine dimesylate 29608-49-9
Almotriptan 154323-57-6
Aloe-emodin 481-72-1
Aloe vera oil 100084-89-7
Aloin 1415-73-2
Alosetron hydrochloride 122852-69-1
alpha,alpha-Diphenyl-4-piperidinomethanol 115-46-8
alpha-Angelica lactone 591-12-8
alpha-[[[(2-Furanylcarbonyl)amino]carbonyl]amino]benzeneacetic acid 89307-25-5
Alphasone acetonide 4968-09-6
Alprazolam 28981-97-7
Altretamine 645-05-6
Aluminium bromide 7727-15-3
Aluminium chloride hexahydrate 7784-13-6
Aluminium dihydrogen triphosphate 13939-25-8
Aluminium 2-ethylhexanoate 30745-55-2
Aluminium glycinate 13682-92-3
Aluminium hydroxide 21645-51-2
Aluminium hydroxybis[2,2'-methylen-bis(4,6-di-tert-butylphenyl)phosphate] 151841-65-5
Aluminium isopropoxide 555-31-7
Aluminium-nickel 12635-29-9
Aluminium sulfate hydrate 17927-65-0
Aluminium sulfate 10043-01-3
Aluminium tripolyphosphate 29196-72-3
Aluminium tri-sec-butoxide 2269-22-9
Aluminon 569-58-4
Aluminum acetate 139-12-8
Aluminum acetylacetonate 13963-57-0
Aluminum chlorohydrate 1327-41-9
Aluminum diacetate hydroxide 142-03-0
Aluminum fluoride 7784-18-1
Aluminum metaphosphate 13776-88-0
Aluminum nitrate 13473-90-0
Aluminum nitride 24304-00-5
Aluminum octadecanoate 637-12-7
Aluminum oxide 1344-28-1
Aluminum phosphide 20859-73-8
Aluminum phthalocyanine chloride 14154-42-8
Alverine 150-59-4
Alverine citrate 5560-59-8
Amantadine 768-94-5
Ambroxol 18683-91-5
Ambroxol hydrochloride 23828-92-4
Ametryn 834-12-8
Amezinium methylsulfate 30578-37-1
Amicarbazone 129909-90-6
Amidinothiourea 2114-02-5
Amidosulfuron 120923-37-7
Amifostine 112901-68-5
Amifostine 20537-88-6
Amikacin disulfate salt 39831-55-5
Amiloride hydrochloride 2016-88-8
Amiloride hydrochloride dihydrate 17440-83-4
2-Amino-5-chloro-2'-fluorobenzophenone 784-38-3
2-Amino-5-chlorobenzophenone 719-59-5
2-Aminoacetamidine dihydrobromide 69816-37-1
2-Amino-5-acetamidobenzotrifluoride 1579-89-1
4'-Aminoacetanilide 122-80-5
3'-Aminoacetanilide 102-28-3
4-Aminoacetanilide-3-sulfonic acid 96-78-6
Aminoacetonitrile hydrochloride 6011-14-9
Aminoacetonitrile sulfate 5466-22-8
3-Aminoacetophenone 99-03-6
2-Aminoacetophenone 551-93-9
4-Aminoacetophenone 99-92-3
2-Aminoacetophenone hydrochloride 5468-37-1
3-Amino-5-acetyliminodibenzyl 84803-67-8
2-Aminoadenosine 2096-10-8
L-2-Aminoadipic acid 1118-90-7
3-Amino-L-alanine hydrochloride 1482-97-9
5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid 119-70-0
4-(4-Aminoanilino)-3-nitrobenzenesulphonic acid 135-11-5
2-(4-Aminoanilino)-5-nitrobenzenesulphonic acid 91-29-2
1-Amino anthraquinone 82-45-1
4-Aminoantipyrine 83-07-8
3-Amino-3-azabicyclo[3.3.0]octane hydrochloride 58108-05-7
4-Aminoazobenzene-3,4'-disulfonic acid 101-50-8
4'-Aminoazobenzene-4-sulphonic acid 104-23-4
2-Aminobenzaldehyde 529-23-7
p-Aminobenzamide 2835-68-9
4-Aminobenzamidine dihydrochloride 2498-50-2
4'-Aminobenzanilide 17625-83-1
3'-Aminobenzanilide 16091-26-2
2-Aminobenzenearsonic acid 2045-00-3
3-Aminobenzeneboronic acid 30418-59-8
3-Aminobenzeneboronic acid hemisulfate salt 66472-86-4
2-Amino-1,4-benzenedisulfonic acid 98-44-2
2-Aminobenzenesulfonamide 3306-62-5
3-Aminobenzenesulfonamide 98-18-0
3-Aminobenzenesulfonanilide 80-21-7
2-Aminobenzenesulfonic acid (1-methylethylidene)di-4,1-phenylene ester 68015-60-1
1-Aminobenzene-3,4,5-tricarboxylic acid 37141-01-8
2-Aminobenzimidazole 934-32-7
4-Aminobenzohydrazide 5351-17-7
4-Aminobenzoic acid 150-13-0
3-Aminobenzoic acid 99-05-8
4-Aminobenzonitrile 873-74-5
3-Aminobenzonitrile 2237-30-1
2-Aminobenzophenone 2835-77-0
4-Aminobenzo-2,1,3-thiadiazole 767-64-6