INTERMEDIATES FOR ORGANIC SYNTHESIS/HETEROCYCLES WITH 2 HETEROATOMS

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#	art.-no.	title	Mol. formula	CAS	Struct. formula	Shop
1.	ST00125	2-Methyl-4,5-dihydro-oxazole	C4H7NO	1120-64-5
2.	ST00133	4-(Cyclohexen-1-yl)morpholine	C10H17NO	670-80-4
3.	ST00136	4-(Cyclopenten-1-yl)morpholine	C9H15NO	936-52-7
4.	ST00151	4-Amino-2-methylthio-thiazole-5-carboxylic acid methyl ester	C6H8N2O2S2	60093-05-2
5.	ST00152	4-Amino-2-methylthio-quinazoline	C9H9N3S	63963-40-6
6.	ST00326	1-(2-Chloroethyl)imidazole hydrochloride	C5H8Cl2N2	18994-78-0
7.	ST00327	1-(2-Hydroxyethyl)imidazole	C5H8N2O	1615-14-1
8.	ST00341	3-Allyl-4-oxo-2-thioxo-thiazolidine	C6H7NOS2	1457-47-2
9.	ST00705	1,10-Phenanthroline monohydrate	C12H8N2 x H2O	5144-89-8
10.	ST00788	3-Ethyl-2-thioxothiazolidin-4-one	C5H7NOS2	7648-01-3
11.	ST00812	Imidazole-4,5-dicarboxylic acid	C5H4N2O4	570-22-9
12.	ST00849	2-Amino-5-bromothiazole monohydrobromide	C3H4Br2N2S	61296-22-8
13.	ST00850	2-Chlorobenzothiazole	C7H4ClNS	615-20-3
14.	ST00854	1-(4´-Aminophen-1-yl)imidazole	C9H9N3	2221-00-3
15.	ST00855	4-(Imidazol-1-yl)benzoic acid	C10H8N2O2	17616-04-5
16.	ST00856	1-(4´-Hydroxyphen-1-yl)imidazole	C9H8N2O	10041-02-8
17.	ST00894	2,3-Dichloroquinoxaline	C8H4Cl2N2	2213-63-0
18.	ST00901	2-Amino-5-iodopyrimidine	C4H4IN3	1445-39-2
19.	ST00913	2,4,5-Trihydroxypyrimidine	C4H4N2O3	496-76-4
20.	ST00919	5-Nitro-benzimidazolin-2-one	C7H5N3O3	93-84-5
21.	ST00923	4-Chloromethyl-2-methylthiazole hydrochloride	C5H7Cl2NS	77470-53-2
22.	ST00932	5-Methoxy-benzimidazolin-2-on	C8H8N2O2	2080-75-3
23.	ST00968	4,5-Diphenyl-2,3-dihydro-1H-imidazol-2-one	C15H12N2O	642-36-4
24.	ST01020	4-Amino-5-chloro-2,6-dimethylpyrimidine	C6H8ClN3	2858-20-0
25.	ST01024	4-Amino-2,6-dimethylpyrimidine	C6H9N3	461-98-3
26.	ST01047	2-Amino-4,6-dimethylpyrimidine	C6H9N3	767-15-7
27.	ST01056	5,6-Dimethyl-2,3-dihydro-2-benzimidazolone	C9H10N2O	2033-30-9
28.	ST01099	2-Bromothiazole	C3H2BrNS	3034-53-5
29.	ST01223	N-Phenylrhodanine	C9H7NOS2	1457-46-1
30.	ST01306	2-Aminobenzothiazole	C7H6N2S	136-95-8
31.	ST01503	2-Mercaptobenzoxazole	C7H5NOS	2382-96-9
32.	ST01504	Imidazole	C3H4N2	288-32-4
33.	ST01541	1,8-Diazabicyclo[5,4,0]-7-undecene	C9H16N2	6674-22-2
34.	ST01542	3,4-(Methylenedioxy)acetophenone	C9H8O3	3162-29-6
35.	ST01557	1H-Pyrrolo(2,3-b)pyridine	C7H6N2	271-63-6
36.	ST01676	2-Cyanopyrimidine	C5H3N3	14080-23-0
37.	ST01707	6-Amino-2-methyl-benzothiazole	C8H8N2S	2941-62-0
38.	ST01923	2,3-Diaminoquinoxaline	C8H8N4	6640-47-7
39.	ST02180	1,3-Dithiane	C4H8S2	505-23-7
40.	ST02204	Indazole	C7H6N2	271-44-3
41.	ST02282	3-Methyl-1H-pyrazole	C4H6N2	1453-58-3
42.	ST02297	5-Methyl-1H-pyrazol-3-ylamine	C4H7N3	31230-17-8
43.	ST02307	Dimethyl pyrimidine-4,6-dicarboxylate	C8H8N2O4	6345-43-3
44.	ST02390	4-Chloro-5-methyl-1H-pyrazol-3-ylamine hydrochloride	C4H7Cl2N3	130128-49-3
45.	ST02391	Ethyl 3-amino-1H-pyrazole-4-carboxylate	C6H9N3O2	6994-25-8
46.	ST02392	5-Amino-3-methyl-1H-pyrazole-4-carboxylic acid ethyl ester	C7H11N3O2	23286-70-6
47.	ST02393	Ethyl 5-methyl-1H-pyrazole-3-carboxylate	C7H10N2O2	4027-57-0
48.	ST02394	5-tert-Butyl-1H-pyrazole-3-carboxylic acid ethyl ester	C10H16N2O2	83405-70-3
49.	ST02395	1,2-Diphenyl-pyrazolidine-3,5-dione	C15H12N2O2	2652-77-9
50.	ST02400	2,4-Dihydroxypyrimidine-5-carboxylic acid	C5H4N2O4	23945-44-0
51.	ST02408	1-tert-Butyl-3-methylpyrazol-5-ylamine	C8H15N3	141459-53-2
52.	ST02409	2-Methyl-thiazole-5-carboxylic acid ethyl ester	C7H9NO2S	79836-78-5
53.	ST02410	2-Methyl-4-trifluoromethyl-thiazole-5-carboxylic acid methyl ester	C7H6F3NO2S	847755-88-8
54.	ST02411	(4-Hydroxy-thiazol-2-yl)acetic acid ethyl ester	C7H9NO3S	79878-57-2
55.	ST02412	(2-Methyl-thiazol-4-yl)acetic acid hydrazide	C6H9N3OS	496057-29-5
56.	ST02413	2-Methyl-thiazole-4-carboxylic acid hydrazide	C5H7N3OS	101767-28-6
57.	ST02414	2,4-Dimethyl-thiazole-5-carboxylic acid hydrazide	C6H9N3OS	99357-25-2
58.	ST02415	Benzothiazole-2-carbaldehyde	C8H5NOS	6639-57-2
59.	ST02442	4-Trifluoromethyl-thiazol-2-ylamine	C4H3F3N2S	349-49-5
60.	ST02443	2-Amino-4-trifluoromethyl-thiazole-5-carboxylic acid ethyl ester	C7H7F3N2O2S	344-72-9
61.	ST02444	4-tert-Butyl-thiazole-2-thiol	C7H11NS2	2180-05-4
62.	ST02445	4,5-Dimethyl-thiazole-2-thiol	C5H7NS2	5351-51-9
63.	ST02446	2,4-Dimethyl-thiazole-5-carboxylic acid	C6H7NO2S	53137-27-2
64.	ST02448	(2-Methyl-thiazol-4-yl)acetamide	C6H8N2OS	185623-66-9
65.	ST02449	2,4-Dimethyl-thiazole-5-carboxamide	C6H8N2OS	66806-33-5
66.	ST02450	2-(4-Hydroxy-thiazol-2-yl)acetamide	C5H6N2O2S	87947-94-2
67.	ST02482	trans-4-Phenylcinnamic acid	C15H12O2	88241-65-0
68.	ST02493	Pyridazine	C4H4N2	289-80-5
69.	ST02548	4,6-Dimethylpyrimidine	C6H8N2	1558-17-4
70.	ST02570	2-Thioxothiazolidin-4-one	C3H3NOS2	141-84-4
71.	ST02596	3-Amino-1H-pyrazole-4-carbonitrile	C4H4N4	16617-46-2
72.	ST02610	5-Amino-3-methyl-1-phenyl-1H-pyrazole-4-carbonitrile	C11H10N4	5346-56-5
73.	ST02626	4-Methyl-1H-imidazole-2-thiol	C4H6N2S	3247-70-9
74.	ST02627	4,5-Dimethyl-1H-imidazole-2-thiol	C5H8N2S	1192-72-9
75.	ST02661	5,6-Dihydro-4H-cyclopentathiazol-2-ylamine	C6H8N2S	53051-97-1
76.	ST02662	5-Chloro-1,3-benzodioxole	C7H5ClO2	7228-38-8
77.	ST02675	(2-tert-Butyl-thiazol-4-yl)acetic acid hydrazide	C9H15N3OS	496057-31-9
78.	ST02689	5-Bromo-2-chloropyrimidine	C4H2BrClN2	32779-36-5
79.	ST02694	1-(2-Dimethylamino-1-ethyl)-3-methyl-1H-pyrazol-5-ylamine	C8H16N4	685892-22-2
80.	ST02697	2,4-Dimethylthiazol-5-carboxylic acid ethyl ester	C8H11NO2S	7210-77-7
81.	ST02810	5-Methyl-4-phenyl-1H-pyrazole-3-ylamine	C10H11N3	60419-81-0
82.	ST02820	2-Methylthiazole-4,5-dicarboxylic acid diethyl ester	C10H13NO4S	18903-17-8
83.	ST02827	2-Amino-5-difluoromethyl-1,3,4-thiadiazole	C3H3F2N3S	25306-15-4
84.	ST02828	5-Bromo-2-hydroxypyrimidine	C4H3BrN2O	38353-06-9
85.	ST02832	2,4-Thiazolidinedione	C3H3NO2S	2295-31-0
86.	ST02880	6-Methylbenzothiazole-2-ylamine	C8H8N2S	2536-91-6
87.	ST02881	5-Amino-1-(2,4,6-trichlorophenyl)pyrazole-4-carbonitrile	C10H5Cl3N4	79002-96-3
88.	ST02915	6-Nitrobenzothiazole-2-ylamine	C7H5N3O2S	6285-57-0
89.	ST02928	3-Methyl-1-phenylpyrazol-5-ylamine	C10H11N3	1131-18-6
90.	ST02976	Pyrazole	C3H4N2	288-13-1
91.	ST02988	5-Fluoro-2-methylbenzoxazole	C8H6FNO	701-16-6
92.	ST02995	5-tert-Butylpyrazole-3-ylamin	C7H13N3	82560-12-1
93.	ST03016	4,5-Dicyanoimidazole	C5H2N4	1122-28-7
94.	ST03019	2-Phenylthiazole	C9H7NS	1826-11-5
95.	ST03036	3-(4-Methoxyphenyl)pyrazole	C10H10N2O	27069-17-6
96.	ST03078	Benzo[1,3]dioxole	C7H6O2	274-09-9
97.	ST03083	Benzo[1,3]dioxol-5-ylamin	C7H7NO2	14268-66-7
98.	ST03148	6-Methoxybenzothiazole-2-ylamine	C8H8N2OS	1747-60-0
99.	ST03162	Isoxazole	C3H3NO	288-14-2
100.	ST03170	5-Methyl-2-(2,4,6-trichlorophenyl)pyrazol-3-ylamine	C10H8Cl3N3	106259-87-4
101.	ST03271	2,2-Dimethyl-5-hydroxymethyl-1,3-dioxane	C7H14O3	4728-12-5
102.	ST03284	4-Methylpyrazole	C4H6N2	7554-65-6
103.	ST03352	S-Boc-2-mercapto-4,6-dimethylpyrimidine	C11H16N2O2S	41840-28-2
104.	ST03374	2-Amino-5-bromopyrimidine	C4H4BrN3	7752-82-1
105.	ST03409	2-Hydroxypyrimidine hydrochloride	C4H5ClN2O	38353-09-2
106.	ST03449	2-Hydrazinopyrimidine	C4H6N4	7504-94-1
107.	ST03461	5-Bromo-2-methylbenzothiazole	C8H6BrNS	63837-11-6
108.	ST03480	3-Amino-5-hydroxypyrazole	C3H5N3O	6126-22-3
109.	ST03492	2-Chloro-1H-imidazole	C3H3ClN2	16265-04-6
110.	ST03523	5-Bromo-2-methoxypyrimidine	C5H5BrN2O	14001-66-2
111.	ST03529	1,5-Naphthyridine	C8H6N2	254-79-5
112.	ST03537	3,5-Pyrazoledicarboxylic acid hydrate	C5H4N2O4 x H2O	303180-11-2
113.	ST03576	4-Cyanothiazole	C4H2N2S	1452-15-9
114.	ST03581	2,2`-Bithiophene	C8H6S2	492-97-7
115.	ST03588	2-Chloro-4-methylthiazole	C4H4ClNS	26847-01-8
116.	ST03597	3,4,5-Tribromopyrazole	C3HBr3N2	17635-44-8
117.	ST03681	1H-Imidazol-2-carboxamide	C4H5N3O	16093-82-6
118.	ST03682	1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydroimidazolium tetrafluoroborate	C27H39BF4N2	282109-83-5
119.	ST03693	1,10-Phenanthroline, anhydrous	C12H8N2	66-71-7
120.	ST03707	2-Chloro-4,6-dimethylpyrimidine	C6H7ClN2	4472-44-0
121.	ST03708	2-Mercapto-4,6-dimethylpyrimidine hydrochloride	C6H9ClN2S	28176-16-1
122.	ST03714	3-Amino-4,5-dimethylisoxazole	C5H8N2O	13999-39-8
123.	ST03718	2-Phenyl-1,3-dithian	C10H12S2	5425-44-5
124.	ST03740	1H-Imidazole-2-carboxylic acid	C4H4N2O2	16042-25-4
125.	ST03771	2-Bromo-1H-imidazole	C3H3BrN2	16681-56-4
126.	ST03772	2-Hydrazino-2-imidazoline hydrobromide	C3H9BrN4	55959-84-7
127.	ST03789	(Benzimidazol-2-yl)acetonitrile	C9H7N3	4414-88-4
128.	ST03799	2-Methylpyrimidine	C5H6N2	5053-43-0
129.	ST03821	2-Methylthiazole-5-carboxylic acid	C5H5NO2S	40004-69-1
130.	ST03823	2-(4-Methoxy-phenyl)-[1,3]dithiane	C11H14OS2	24588-72-5
131.	ST03826	2,4-Dichlorothiazole	C3HCl2NS	4175-76-2
132.	ST03842	4-Chloro-1H-pyrrolo(2,3-b)pyridine	C8H5ClN2	55052-28-3
133.	ST03885	4-(4-Bromophenyl)-1H-pyrazol-3-ylamine	C9H8BrN3	40545-64-0
134.	ST03892	1H-Pyrazole-1yl-N-methylamidine hydrochloride	C5H9ClN4	59194-35-3
135.	ST03906	1H-Pyrazole-1yl-N,N-dimethylamidine hydrochloride	C6H11ClN4	421552-30-9
136.	ST03915	3-Methyl-1-(4-nitrophenyl)-1H-pyrazol-5-amine	C10H10N4O2	16459-47-5
137.	ST03920	4-Amino-3,5-dimethylisoxazole	C5H8N2O	31329-64-3
138.	ST04004	5-Hydroxyquinoxaline	C8H6N2O	17056-99-4
139.	ST04005	Ethyl thiazole-4-carboxylate	C6H7NO2S	14527-43-6
140.	ST04006	2-Chloro-6-methoxybenzothiazole	C8H6ClNOS	2605-14-3
141.	ST04008	1H-Pyrazol-3,5-dicarboxylic acid	C5H4N2O4	3112-31-0
142.	ST04009	Dimethyl 1H-pyrazol-3,5-dicarboxylate	C7H8N2O4	4077-76-3
143.	ST04018	1,3-Bis(2,4,6-Trimethylphenyl)-4,5-dihydroimidazolium tetrafluoroborate	C21H27BF4N2	245679-18-9
144.	ST04043	Pyrazole-3-carboxylic acid	C4H4N2O2	1621-91-6
145.	ST04075	5-Bromothiazole	C3H2BrNS	3034-55-7
146.	ST04076	Thiazole-4-carbaldehyde	C4H3NOS	3364-80-5
147.	ST04077	Thiazole-4-carboxylic acid	C4H3NO2S	3973-08-8
148.	ST04116	2,3-Dihydroxyquinoxaline	C8H6N2O2	6287-20-3
149.	ST04130	4-(1H-Pyrazol-1-yl)benzoic acid	C10H8N2O2	16209-00-0
150.	ST04132	4-(5,5-Dimethyl-1,3-dioxane-2-yl)but-3-enal	C10H16O3	119376-78-2
151.	ST04137	5-Methyl-1H-pyrazole-3-carboxylic acid	C5H6N2O2	402-61-9
152.	ST04197	N-(2-Cyanoethyl)imidazole	C6H7N3	23996-53-4
153.	ST04254	2-Chloropyrimidine	C4H3ClN2	1722-12-9
154.	ST04273	2,5-Dibromopyrazine	C4H2Br2N2	23229-26-7
155.	ST04284	Piperazine-1-carboxylic acid tert-butyl ester	C9H18N2O2	57260-71-6
156.	ST04381	2,3-Dihydro-5H-benzo[e][1,4]dioxepin-5-one	C9H8O3	22891-52-7
157.	ST04490	(E)-2,4'-(ethene-1,2-diyl)dipyridine	C12H10N2	14802-41-6
158.	ST04545	2-Methyl-thiazole-4-carboxylic acid ethyl ester	C7H9NO2S	6436-59-5
159.	ST04660	3-Methylbenzothiazol-3-ium iodide	C8H8INS	2786-31-4
160.	ST04901	(2-Methylthiazol-5-yl)methanol	C5H7NOS	56012-38-5
161.	ST05107	2-(Trifluoromethyl)benzimidazole	C8H5F3N2	312-73-2
162.	ST05110	5-Nitro-2-(trifluoromethyl)benzimidazole	C8H4F3N3O2	327-19-5
163.	ST05117	2-(Methylthio)benzimidazole	C8H8N2S	7152-24-1
164.	ST05120	1-Methyl-6-nitrobenzimidazole	C8H7N3O2	5381-79-3
165.	ST05121	1-Methyl-5-nitrobenzimidazole	C8H7N3O2	5381-78-2
166.	ST05122	1-Methyl-4-nitrobenzimidazole	C8H7N3O2	31493-66-0
167.	ST05123	4-Nitrobenzimidazole	C7H5N3O2	10597-52-1
168.	ST05130	6-Hydroxybenzothiazole-2-carbonitrile	C8H4N2OS	939-69-5
169.	ST05132	2-Acetylbenzothiazole	C9H7NOS	1629-78-3
170.	ST05133	2-Hydroxybenzothiazole	C7H5NOS	934-34-9
171.	ST05134	N-(Chloromethyl)benzothiazole-2-thione	C8H6ClNS2	41526-42-5
172.	ST05136	2-Amino-4-chlorobenzothiazole	C7H5ClN2S	19952-47-7
173.	ST05165	Ethyl 5-amino-3-thioxo-3H-1,2-dithiole-4-carboxylate	C6H7NO2S3	3354-38-9
174.	ST05185	5-Chloro-1-methyl-4-nitro-1H-imidazole	C4H4ClN3O2	4897-25-0
175.	ST05191	2-Amino-1H-imidazole-4,5-dicarbonitrile	C5H3N5	40953-34-2
176.	ST05214	2-(Nitroimino)imidazolidine	C3H6N4O2	5465-96-3
177.	ST05248	4-Amino-2-(methylthio)quinazoline	C9H9N3S	63963-40-6
178.	ST05255	5-Benzylthio-3-hydroxy-1,2,4-thiadiazole	C9H8N2OS2	56409-57-5
179.	ST05334	2-Acetyl-4,5-dimethylthiazole	C7H9NOS	7531-76-2
180.	ST05368	4-Amino-5-cyano-2-(methylthio)thiazole	C5H5N3S2	39736-28-2
181.	ST05372	Ethyl 2-amino-4-phenyl-5-thiazolecarboxylate	C12H12N2O2S	64399-23-1
182.	ST05465	2-Trifluoromethyl-1H-benzoimidazol-5-ylamine	C8H6F3N3	3671-66-7
183.	ST05466	2-Methyl-5,6-dihydro-1,4-oxathiin carboxylic acid	C6H8O3S	6577-69-1
184.	ST05467	2-(Ethylamino)-1,3,4-thiadiazole	C4H7N3S	13275-68-8
185.	ST05471	2-Amino-1-benzo[1,3]dioxol-5-yl-ethanol	C9H11NO3	7464-97-3
186.	ST05472	2-Amino-1-(2,3-dihydrobenzo[1,4]dioxin-6-yl)ethanol	C10H13NO3	4384-99-0
187.	ST05474	5-Amino-3-thioxo-3H-1,2-dithiole-4-carbonitrile	C4H2N2S3	5147-74-0
188.	ST05478	2-Amino-1-quinolin-4-yl-ethanol dihydrochloride	C11H14Cl2N2O	52239-40-4
189.	ST05479	5-Amino-6-nitroquinoline	C9H7N3O2	35975-00-9
190.	ST05525	2,5,6-Trimethylbenzoselenazole	C10H11NSe	2946-20-5
191.	ST05526	4,5-Dimethyl-2-selenoxo-1,3-diselenole	C5H6Se3	53808-62-1
192.	ST05854	4-Iodo-1-methyl-1H-pyrazole-5-carboxylic acid	C5H5IN2O2	75092-30-7
193.	ST05942	4-Chloro-6-iodo-7H-pyrrolo[2,3-d]pyrimidine	C6H3ClIN3	876343-10-1
194.	ST05964	4,4-Dimethyl-4,5-dihydrooxazole	C5H9NO	30093-99-3
195.	ST05970	2,4,4-Trimethyl-4,5-dihydrooxazole	C6H11NO	1772-43-6
196.	ST06050	5-Methoxybenzothiazole-2-thiol	C8H7NOS2	55690-60-3
197.	ST06053	5-Methyl[1,10]phenanthroline	C13H10N2	3002-78-6
198.	ST06140	Benzo-1,4-dioxane	C8H8O2	493-09-4
199.	ST06189	4H-Cyclopenta(2,1-b:3,4-b')dithiophene	C9H6S2	389-58-2
200.	ST06222	2-Chloro-5-n-hexylpyrimidine	C10H15ClN2	154466-61-2
201.	ST06343	1,3-Dichlor-2-propanol	C3H6Cl2O	96-23-1
202.	ST06345	1,10-Phenanthroline-2,9-dicarboxylic acid	C14H8N2O4	57709-61-2
203.	ST06386	4H-Cyclopenta[2,1-b:3,4-b']dithiophen-4-one	C9H4OS2	25796-77-4