Shanghai Ascen Chemical Co., Ltd.

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Profile: Shanghai Ascen Chemical Co., Ltd. specializes in developing API & key intermediates. Intermediates of APIs include 1-cyano-4,5-dimethoxybenzocyclobutene, 4H-1-benzopyran-4-one, 8-amino-2-(2H-tetrazol-5-yl), meropenem side chain, 5-hydroxymethylthiazole, boc-L-hydroxyproline and 4-thiazoleacetic acid. Chiral intermediates include (4R)-2,2-dimethyl-1,3-dioxolane-4-methanol, (R)-3-quinuclidinol, (S)-3-aminopyrrolidine, Z-L-alaninol and (R)-1-phenethylamine.

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• 2-Chloro-5-nitropyrimidine

IUPAC Name: 2-chloro-5-nitropyrimidine | CAS Registry Number: 10320-42-0
Synonyms: Ambap4214, 2-Chloro-5-nitropyrimidin, Pyrimidine, 2-chloro-5-nitro-, NSC528724, CID82544, EINECS 233-703-8, TL8000144

Molecular Formula:	C₄H₂ClN₃O₂	Molecular Weight:	159.530580 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	4

InChIKey: OFCBNMYNAHUDGE-UHFFFAOYSA-N

• (S)-3-Aminopyrrolidine

IUPAC Name: (3S)-pyrrolidin-3-amine | CAS Registry Number: 128345-57-3
Synonyms: (3S)-(-)-3-Aminopyrrolidine, (S)-pyrrolidin-3-amine, (S)-(-)-3-Aminopyrrolidine, AG-D-58481, PubChem5729, (3S)-3-Aminopyrrolidine, (3S)-pyrrolidin-3-amine, SureCN336177, 3-Pyrrolidinamine,(3S)-, AC1LU30H, 540803_ALDRICH, CTK4B5913, MolPort-000-000-473, ANW-19062, AKOS006238850, AKOS015854202, AK109063, KB-01633, FT-0081989, A44020

Molecular Formula:	C₄H₁₀N₂	Molecular Weight:	86.135600 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	2

InChIKey: NGXSWUFDCSEIOO-BYPYZUCNSA-N

• 2,5-Diformylfuran

IUPAC Name: furan-2,5-dicarbaldehyde | CAS Registry Number: 823-82-5
Synonyms: 2,5-Furandicarbaldehyde, Furan-2,5-dial, 2,5-Furandicarboxaldehyde, Furan-2,5-dicarbaldehyde, NSC618088, CID69980, EINECS 212-520-7, TL80073462

Molecular Formula:	C₆H₄O₃	Molecular Weight:	124.094160 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	3

InChIKey: PXJJKVNIMAZHCB-UHFFFAOYSA-N

• 1,4-Dithia-7-azaspiro[4,4]nonane-8-carboxylic acid hydrobromide

IUPAC Name: 1,4-dithia-7-azaspiro[4.4]nonane-8-carboxylic acid;hydrobromide | CAS Registry Number: 75776-79-3
Synonyms: AG-H-02101, MolPort-020-001-036, SBB067166, AKOS015904443, I111, A838506, I14-1714, 1,4-Dithia-7-azaspiro[4,4]nonane-8-carboxylic acid HBr, 6,9-dithia-3-azaspiro[4.4]nonane-2-carboxylic acid hydrobromide

Molecular Formula:	C₇H₁₂BrNO₂S₂	Molecular Weight:	286.209680 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	5

InChIKey: DXALUCGGSBGKIY-UHFFFAOYSA-N

• 3-Methoxy-2-methylphenylamine

IUPAC Name: 3-methoxy-2-methylaniline | CAS Registry Number: 19500-02-8
Synonyms: 3-Methoxy-2-methylaniline, 1-Amino-3-methoxy-2-methylbenzene, 3-Methoxy-2-methyl-phenylamine, 3-Methoxy-2-methyl-Benzenamine, Benzenamine, 3-methoxy-2-methyl-, 2-methyl-3-Methoxyaniline, 3-methoxy-2-methylbenzenamine, AG-E-42544, 3-methoxy-2-methyl-aniline, zlchem 580, 3-Methoxy-o-toluidine, PubChem15040, ACMC-209eyx, AGN-PC-00GIOM, SureCN265737, KSC174K5F, BEN345, 2-METHYL-3-AMINOANISOLE, 3-AMINO-2-METHYLANISOLE, CTK0H4552

Molecular Formula:	C₈H₁₁NO	Molecular Weight:	137.179040 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: OPXLVWLFDKRYRB-UHFFFAOYSA-N

• 7-Bromoquinoline

IUPAC Name: 7-bromoquinoline | CAS Registry Number: 4965-36-0
Synonyms: 7-bromoquinoline, Quinoline, 7-bromo-, MLS000543458, ZINC01020114, SMR000162690, TL8007311, InChI=1/C9H6BrN/c10-8-4-3-7-2-1-5-11-9(7)6-8/h1-6

Molecular Formula:	C₉H₆BrN	Molecular Weight:	208.054640 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	1

InChIKey: XYBSZCUHOLWQQU-UHFFFAOYSA-N

• (S)-(-)-3-Pyrrolidinol

IUPAC Name: (3S)-pyrrolidin-1-ium-3-ol | CAS Registry Number: 100243-39-8
Synonyms: ZINC01574930, ZINC02140994, CID7003742

Molecular Formula:	C₄H₁₀NO+	Molecular Weight:	88.128300 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	1

InChIKey: JHHZLHWJQPUNKB-BYPYZUCNSA-O

• 2-Methylbenzimidazole

IUPAC Name: 2-methyl-1H-benzimidazole | CAS Registry Number: 615-15-6
Synonyms: Benzimidazole, 2-methyl-, Methylbenzimidazole, 2-METHYLBENZIMIDAZOLE, 1H-Benzimidazole, 2-methyl-, Methyl-2-benzimidazole, 2-Methyl-1H-benzimidazole, 1H-Benzimidazole, methyl-, Acetamidine, N-N'-o-phenylene-, M29800_ALDRICH, 2-methyl-1H-benzo[d]imidazole, NSC 6500, 65840_FLUKA, EINECS 210-411-9, WLN: T56 BM DNJ C1, NSC6500, BRN 0112264, ZINC00164607, AI3-51528, LS-33044, ST5136079

Molecular Formula:	C₈H₈N₂	Molecular Weight:	132.162520 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: LDZYRENCLPUXAX-UHFFFAOYSA-N

• 2-Fluoro-6-nitrotoluene

IUPAC Name: 1-fluoro-2-methyl-3-nitrobenzene | CAS Registry Number: 769-10-8
Synonyms: 247685_ALDRICH, NSC10333, EINECS 212-203-3, ZINC01706175, Benzene, 1-fluoro-2-methyl-3-nitro-, SL-02937, TL8005282

Molecular Formula:	C₇H₆FNO₂	Molecular Weight:	155.126443 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	3

InChIKey: GXPIVRKDWZKIKZ-UHFFFAOYSA-N

• 1-Boc-3-pyrrolidinone

IUPAC Name: tert-butyl 3-oxopyrrolidine-1-carboxylate | CAS Registry Number: 101385-93-7
Synonyms: N-Boc-3-pyrrolidinone, N-Boc-3-pyrrolidinol, 637564_ALDRICH, AIDS071255, AIDS-071255, ZINC04202590, tert-Butyl 3-oxopyrrolidinecarboxylate, N-(tert-Butoxycarbonyl)-3-pyrrolidinone, TL806112

Molecular Formula:	C₉H₁₅NO₃	Molecular Weight:	185.220300 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	3

InChIKey: JSOMVCDXPUXKIC-UHFFFAOYSA-N

• 2-Nitro-4-(trifluoromethyl)phenol

IUPAC Name: 2-nitro-4-(trifluoromethyl)phenol | CAS Registry Number: 400-99-7
Synonyms: 238759_ALDRICH, EINECS 206-927-9, Phenol, 2-nitro-4-(trifluoromethyl)-, BRN 2215510, 4-TRIFLUOROMETHYL-2-NITROPHENOL, 2-Nitro-alpha,alpha,alpha-trifluoro-p-cresol, LS-55430, p-Cresol, 2-nitro-alpha,alpha,alpha-trifluoro-, ST5319952, 4-06-00-02150 (Beilstein Handbook Reference)

Molecular Formula:	C₇H₄F₃NO₃	Molecular Weight:	207.106770 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	6

InChIKey: XZEDEVRSUANQEM-UHFFFAOYSA-N

• 5-Hydroxymethyl Thiazole

IUPAC Name: 1,3-thiazol-5-ylmethanol | CAS Registry Number: 38585-74-9
Synonyms: 5-Thiazolemethanol, 5-Hydroxymethylthiazole, Ambap2763, ZINC02527712, CID2763216, T2166M500, TL8002812

Molecular Formula:	C₄H₅NOS	Molecular Weight:	115.153600 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: WKBQQWDVVHGWDB-UHFFFAOYSA-N

• 3,4-Dibromo-1H-pyrrole-2,5-dione

IUPAC Name: 3,4-dibromopyrrole-2,5-dione | CAS Registry Number: 1122-10-7
Synonyms: Dibromomaleinimide, 2,3-Dibromomaleimide, MALEIMIDE, DIBROMO-, 553603_ALDRICH, 3,4-Dibromo-pyrrole-2,5-dione, BRN 0121508, LS-88678, 5-21-10-00050 (Beilstein Handbook Reference)

Molecular Formula:	C₄HBr₂NO₂	Molecular Weight:	254.864240 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: BIKSKRPHKQWJCW-UHFFFAOYSA-N

• 3-Bromo-5-fluorophenol

IUPAC Name: 3-bromo-5-fluorophenol | CAS Registry Number: 433939-27-6
Synonyms: 3-Fluoro-5-Bromophenol, 5-Bromo-3-fluorophenol, AG-F-53628, PubChem4129, ACMC-1APWB, SureCN393819, KSC493M6T, CTK3J3669, MolPort-001-773-363, ACN-S003489, ACT11630, ANW-29982, CL8478, SBB091220, ZINC12957254, AKOS005254559, AC-3758, AS01363, RP25036, TF10006

Molecular Formula:	C₆H₄BrFO	Molecular Weight:	190.997763 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: JCPJGUPQZDEZQH-UHFFFAOYSA-N

• 4,5-Difluorophthalicacid

IUPAC Name: 4,5-difluorophthalic acid | CAS Registry Number: 18959-31-4
Synonyms: 4,5-difluorophthalic acid, 4,5-Difluorobenzene-1,2-dicarboxylic acid, SBB064350, AG-E-38425, 1,2-benzenedicarboxylic acid, 4,5-difluoro-, PubChem1946, AC1LD73S, SureCN4830274, KSC174S8B, AKOS AKM00016, AC1Q722I, AKOS 268, CTK0H4980, MolPort-000-882-220, WT071, ACT03032, ANW-47528, AKOS000278395, AS02022, Phthalicacid, 4,5-difluoro- (8CI);

Molecular Formula:	C₈H₄F₂O₄	Molecular Weight:	202.111766 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	6

InChIKey: FFSBOABNRUJQFW-UHFFFAOYSA-N

• 4-Amino-6-Bromoquinoline

IUPAC Name: 6-bromoquinolin-4-amine | CAS Registry Number: 65340-73-0
Synonyms: 6-bromoquinolin-4-amine, 4-Amino-6-bromoquinoline, ZINC02513557, QU491, CID2756374, TL8007312, UX00006143

Molecular Formula:	C₉H₇BrN₂	Molecular Weight:	223.069280 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: FNXZGQRYAJYZLP-UHFFFAOYSA-N

• 5-Ethylindole

IUPAC Name: 5-ethyl-1H-indole | CAS Registry Number: 68742-28-9
Synonyms: 5-ethylindole, 5-ethyl-1H-indole, 1H-Indole, 5-ethyl-, AG-G-65633, 5-Ethylindole;, 5-Ethyl Indole, PubChem22662, SureCN763201, Ambap68742-28-9, CTK2F2667, ANW-56550, ZINC02508158, AKOS006283207, LS20080, AK-30131, KB-43123, TL8007350, AM20080933, FT-0620380, E-7870

Molecular Formula:	C₁₀H₁₁N	Molecular Weight:	145.201040 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	0

InChIKey: OLOBSRWDALLNKY-UHFFFAOYSA-N

• 5-Amino-4-cyano-1-methyl-1,2-pyrazole

IUPAC Name: 5-amino-1-methylpyrazole-4-carbonitrile | CAS Registry Number: 5334-41-8
Synonyms: NCIOpen2_001676, NSC1412, ZERO/006199, 5-Amino-4-cyano-1-methylpyrazole, CID219740, NSC102022, ZINC00169364, 5-amino-1-methyl-1H-pyrazole-4-carbonitrile, TL8003508, 1H-pyrazole-4-carbonitrile, 5-amino-1-methyl-, 5-AMINO-1-METHYLPYRAZOLE-4-CARBONITRILE, AG-826/25038003, InChI=1/C5H6N4/c1-9-5(7)4(2-6)3-8-9/h3H,7H2,1H

Molecular Formula:	C₅H₆N₄	Molecular Weight:	122.127940 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	4

InChIKey: MZFBWODPTSTYAI-UHFFFAOYSA-N

• (R)-Tetrahydro-2-furancarbothioic acid

IUPAC Name: oxolane-2-carbothioic S-acid | CAS Registry Number: 153165-72-1
Synonyms: 2-Furancarbothioicacid, tetrahydro-, (2R)-, ACMC-20n6mc

Molecular Formula:	C₅H₈O₂S	Molecular Weight:	132.180820 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	3

InChIKey: VXYYXBQTPJTYOB-UHFFFAOYSA-N

• (R)(+) Alpha Methylbenzyl Amine

IUPAC Name: (1R)-1-phenylethanamine | CAS Registry Number: 3886-69-9
Synonyms: 1-Phenylethanamine, D-alpha-Methylbenzylamine, (1R)-1-phenylethanamine, (R)-()-1-Phenylethylamine, 115541_ALDRICH, (R)-()-alpha-Methylbenzylamine, 77879_FLUKA, 77880_FLUKA, CHEBI:35322, Benzenemethanamine, alpha-methyl-, (R)-alpha-Methylbenzenemethanamine, (alphaR)-alpha-methylbenzenemethanamine, SL-00443, InChI=1/C8H11N/c1-7(9)8-5-3-2-4-6-8/h2-7H,9H2,1H, 98-84-0

Molecular Formula:	C₈H₁₁N	Molecular Weight:	121.179640 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	1

InChIKey: RQEUFEKYXDPUSK-SSDOTTSWSA-N

• (S)-4-Hydroxy-2-pyrrolidone

IUPAC Name: (4S)-4-hydroxypyrrolidin-2-one | CAS Registry Number: 68108-18-9
Synonyms: 4-hydroxypyrrolidin-2-one, 2-Pyrrolidinone, 4-hydroxy-, 479179_ALDRICH, (S)-beta-Hydroxy-gamma-butyrolactam, 2-Pyrrolidinone, 4-hydroxy-, (4S)-, (S)-(−)-4-Hydroxy-2-pyrrolidinone, InChI=1/C4H7NO2/c6-3-1-4(7)5-2-3/h3,6H,1-2H2,(H,5,7

Molecular Formula:	C₄H₇NO₂	Molecular Weight:	101.103880 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	2

InChIKey: IOGISYQVOGVIEU-VKHMYHEASA-N

• 2,4-dichloro-5-nitropyrimidine

IUPAC Name: 2,4-dichloro-5-nitropyrimidine | CAS Registry Number: 49845-33-2
Synonyms: nchembio826-comp4, Ambap3662, 2,4-Dichloro-5-nitropyrimidine, 658340_ALDRICH, 3-Nitro-2,4-dichloropyrimidine, 2,4-Dichloro-5-nitro-pyrimidine, ZINC02023569, CID521266, Pyrimidine, 2,4-dichloro-5-nitro-, TL806384, AC-907/25004262

Molecular Formula:	C₄HCl₂N₃O₂	Molecular Weight:	193.975640 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	4

InChIKey: INUSQTPGSHFGHM-UHFFFAOYSA-N

• 6-Trifluoromethylindole

IUPAC Name: 6-(trifluoromethyl)-1H-indole | CAS Registry Number: 13544-43-9
Synonyms: 6-(Trifluoromethyl)indole, 6-(trifluoromethyl)-1H-indole, 6-Trifluoromethyl-1H-indole, 1H-Indole, 6-(trifluoromethyl)-, ST50408288, ZINC02564310, PubChem1713, AC1MCRRZ, ACMC-1BSCM, 6-Trifluoromethylindole,, SureCN45243, KSC910G4N, RARECHEM AH BS 0129, CTK8B0346, MolPort-000-006-386, ACT02560, ANW-19845, RW1246, SBB090260, WTI-10687

Molecular Formula:	C₉H₆F₃N	Molecular Weight:	185.145850 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	3

InChIKey: BPYBYPREOVLFED-UHFFFAOYSA-N

• 2-[(S)-(4-Chlorophenyl)(4-Piperidinyloxy)methyl]Pyridine

IUPAC Name: 2-[(S)-(4-chlorophenyl)-piperidin-4-yloxymethyl]pyridine | CAS Registry Number: 201594-84-5
Synonyms: (S)-2-[(4-Chlorophenyl)(4-piperidinyloxy)methyl]pyridine, (S)-2-((4-Chlorophenyl)(piperidin-4-yloxy)methyl)pyridine, (s)-4-[1-(4-chlorophenyl)-1-(2-pyridyl)methoxy]piperidine, PubChem19183, SureCN2805296, CTK0J9591, MolPort-005-943-346, ANW-57460, AKOS015901675, AC-6931, AK-86958, KB-80200, I14-13990, Pyridine,2-[(S)-(4-chlorophenyl)(4-piperidinyloxy)methyl]-

Molecular Formula:	C₁₇H₁₉ClN₂O	Molecular Weight:	302.798560 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	3

InChIKey: OTZYADIPHOGUDN-KRWDZBQOSA-N