Fine chemicals are single, pure chemical compounds with precise properties that result in an end product. Commodity chemicals are used to make fine chemicals. These are utilized as organic building blocks to generate new compounds with particular functional properties. Fine chemical production is complicated and variable, with multi-step operations using new technology to reach ultra-high purity criteria.

Buspirone EP Impurity-L

Buspirone EP Impurity-L

CAS Number
21098-11-3
Buspirone EP Impurity-N

Buspirone EP Impurity-N

CAS Number
257877-44-4
Allopurinol Related compound - A

Allopurinol Related compound - A

CAS Number
5334-31-6 (free base)
Alternate CAS Number
27511-79-1(hemisulfate salt)
Allopurinol Related compound - B

Allopurinol Related compound - B

CAS Number
22407-20-1
Allopurinol Related Compound - E

Allopurinol Related Compound - E

CAS Number
31055-19-3
Oxypurinol

Oxypurinol 

CAS Number
2465-59-0
Ambrisentan API

Ambrisentan API

CAS Number
177036-94-1
Ambrisentan (R)-Isomer

Ambrisentan (R)-Isomer

CAS Number
1007358-76-0
7-Bromo Analogue Benazepril Impurity

7-Bromo Analogue Benazepril Impurity

CAS Number
NA
Tert-Butyl (R)-2-(3-amino-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-1-yl)acetate

Tert-Butyl (R)-2-(3-amino-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-1-yl)acetate

CAS Number
115406-14-9
N-Nitroso Benazepril

N-Nitroso Benazepril

CAS Number
NA
Benazepril Tert-Butyl Ester 

Benazepril Tert-Butyl Ester 

CAS Number
109010-61-9
Methyl-2-(4-(2-Chloroacetyl)phenyl)-2-methyl propanoate

Methyl-2-(4-(2-Chloroacetyl)phenyl)-2-methyl propanoate

CAS Number
1638785-19-9
2-methylpropanoic Acid

2-(3-(2-(4-(1-(2-Ethoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoic Acid

CAS Number
1215537-40-8
1’-Hydroxy Bilastine

1’-Hydroxy Bilastine

CAS Number
1638785-23-5
Bilastine N-Oxide

Bilastine N-Oxide

CAS Number
2069238-47-5
benzo[d]imidazol

Methyl-2-(4-(2-(4-(1-(2-ethoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoate

CAS Number
1181267-38-8
C18H23N3O4

Ethyl 2-(1-(ethoxycarbonyl)piperidin-4-yl)-1H-benzo[d]imidazole-1-carboxylate

CAS Number
NA
Methyl 2-(4-(2-chloroethyl)phenyl)-2-methylpropanoate

Methyl 2-(4-(2-chloroethyl)phenyl)-2-methylpropanoate

CAS Number
1181267-33-3
2807304-46-5

2-(1-(2-Ethoxyethyl)piperidin-4-yl)-1H-benzo[d]imidazole

CAS Number
2807304-46-5
2818982-86-2

1-(2-Ethoxyethyl)-2-(1-(2-ethoxyethyl)piperidin-4-yl)-1H-benzo[d]imidazole

CAS Number
2818982-86-2
2731008-04-9

1H-Benzimidazole

CAS Number
2731008-04-9
1841081-72-8

1-(2-Ethoxyethyl)-2-(piperidin-4-yl)-1H-benzo[d]imidazole hydrochloride

CAS Number
1841081-72-8
1181267-36-6

Tert-butyl 4-(1-(2-ethoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidine-1-carboxylate

CAS Number
1181267-36-6
Bupropion Related compound - A

Bupropion Related compound - A

CAS Number
1049718-72-0
Bupropion Deschloro Impurity

Bupropion Deschloro Impurity

CAS Number
63199-74-6
Ortho Bupropion

Ortho Bupropion (Imp-2)

CAS Number
1049718-57-1
Bupropion Related compound - F

Bupropion Related compound - F

CAS Number
857233-13-7
5-Chloro Bupropion

5-Chloro Bupropion

CAS Number
1193779-48-4
C13H18Cl3NO

2-(tert-Butylamino)-1-(3,4-dichlorophenyl)propan-1-one hydrochloride

CAS Number
1346598-72-8
Alternate CAS Number
1193779-34-8(Freebase);1193779-36-0(Fumarate Salt)
87427-61-0

2-Bromo-1-(3,4-dichlorophenyl)propan-1-one

CAS Number
87427-61-0
76650-08-3

2-Bromo-1-(3-bromophenyl)propan-1-one

CAS Number
76650-08-3
C9H11Cl2NO

2-Amino-1-(3-chloro phenyl)propan-1-one hydrochloride

CAS Number
2227990-16-9
Alternate CAS Number
119802-69-6(Freebase)
357399-43-0

2-Hydroxy-2-(3’-chlorophenyl)-3,5,5-trimethylmorpholine

CAS Number
357399-43-0
Propan-1-one, 2-Bromo-1-(3,5-dichlorophenyl);

2-Bromo-1-(3,5-dichlorophenyl)propan-1-one

CAS Number
92821-91-5
Buspirone EP Impurity-F

Buspirone EP Impurity-F

CAS Number
2512210-24-9
6’-Hydroxy Buspirone

6’-Hydroxy Buspirone

CAS Number
125481-61-0
2-(4-Nitrosopiperazin-1-yl)pyrimidine

2-(4-Nitrosopiperazin-1-yl)pyrimidine

CAS Number
872826-80-7
Buspirone N-Oxide

Buspirone N-Oxide

CAS Number
220747-81-9
Amlodipine Besilate Impurity - F (Maleate Salt)

Amlodipine Besilate Impurity - F (Maleate Salt)

CAS Number
400024-11-5
Alternate CAS Number
140171-66-0(Freebase)
Amlodipine Besilate Impurity - E

Amlodipine Besilate Impurity - E

CAS Number
140171-65-9
Alternate CAS Number
400024-12-6(Maleate Salt)
Amlodipine - API Standards

Amlodipine - API Standards

CAS Number
88150-42-9
Amlodipine 4-chloro Isomer

Amlodipine 4-chloro Isomer

CAS Number
90445-02-6
(S)-Amlodipine

(S)-Amlodipine

CAS Number
103129-82-4
Alternate CAS Number
884648-62-8(Besylate Hemipentahydrate Salt)
3-O-Desmethyl Amlodipine

3-O-Desmethyl Amlodipine

CAS Number
113994-37-9
5-Ethyl 7-methyl 6-(2-chlorophenyl)-8-methyl-3,4,6,7-tetrahydro-2H-benzo[b][1,4]oxazine-5,7-dicarboxylate

5-Ethyl 7-methyl 6-(2-chlorophenyl)-8-methyl-3,4,6,7-tetrahydro-2H-benzo[b][1,4]oxazine-5,7-dicarboxylate

CAS Number
496024-43-2
Deschloro Amlodipine

Deschloro Amlodipine

CAS Number
88150-52-1
Amlodipine Besilate - Impurity C

Amlodipine Besilate Impurity - C

CAS Number
721958-74-3
Alternate CAS Number
2202710-78-7(DiHCl Salt)