Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

31251-41-9

31251-41-9 structure

31251-41-9 structure

Name: Loratadine Impurity 2
Chemical Name: 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one
CAS Number: 31251-41-9
Molecular Formula: C₁₄H₁₀ClNO
Molecular Weight: 243.68800
Create Date: 2018-12-14 09:42:37
Modify Date: 2026-07-04 21:21:45

Name	8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one
Synonyms	Keto loratadine 6-dihydro-11H-benzo[5 8-Chloro-10 11-dihydro-4-aza-5H-benzo[A Loratadine Impurity B (Loratadine Related Compound C) D] cycloheptan-5-one Loratadine Related Compound C (8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohta[1,2-b]pyridin-11-one) 8-Chloro-10,11-dihydro-4-aza-5H-dibenzo[a,d]cyclohtan-5-on Loratadine Impurity B（） 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclo hta[1,2-b]pyridin-11 8-CHLORO-10,11-DIHYDRO-4-AZA-5H-BENZO[A,D] CYCLOHTAN-5-ONE 8-Chloro-10,11-dihydro-4-aza-5 8-CHLORO-10,11-DIHYDRO-4-AZA-5H-DIBENZO-(A,D)CYCLOHTAN-5-ONE Loratadine Impurity 2(Loratadine Impurity B) 2-b]pyridin-11-one Loratadine Related CoMpound C 13-chloro-4-azatricyclo[9.4.0.0,3,8]pentadeca-1,3,5,7,11,13-hexaen-2-one 8-Chloro-5,6-dihydro-11H-benzo 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohta[1,2-b]pyridin-11-one Loratadine Related Compound C (15 mg) (8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohta[1,2-b]pyridin-11-one) 8-CHLORO-5,6-DIHYDRO-11H-BENZO[5,6]CYCLOHTA[1,2-B]PYRIMIDINE-11-ONE 8-chloro-10,11-dihydro-4-AZA-5H-benzo〔A,D〕cyclohta-5-one 8-CHLORO-6,11-DIHYDRO-11-(1-METHYL-4-PIPERIDYLEDENE)-5H-BENZO(5,6)-CYCLOHTA(1,2,B)PYRIDINE 2-chloromethyl-3-methy-(2,2,2- triflu oroethoxy) pyridine hydrochloride 4-(8-Chloro-6,11-dihydro-5H-benzo[5,6]cyclo Loratad Impurity B Loratadine IMpurity B 11H-Benzo[5,6]cyclohta[1,2-b]pyridin-11-one,8-chloro-5,6-dihydro 8-CHLORO-10,11-DIHYDRO-4 AZA-5H-BENZO[A,D] CYCLOHTAN-5-ONE = D] cyclohtan-5-one 8-Chloro-10,11-dihydro-4-aza-5H-dibenzo (a,d)yclohtan-5-one 8-CHLORO-5,6-DIHYDRO-11H-BENZO-(5,6)-CYCLOHTA-(1,2-B)-PYRIMIDINE-11-ON 13-chloro-4-azatricyclo[9.4.0.03,8]pentadeca-1,3,4,6,12,14-hexaen-2-one 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohta[1,2-b]pyridin-11-one (Desloratadine Impurity) 8-chloro-5,6-dihydro-11H-benzo [5,6] cyclohtano [1,2-b] pyridin-11 one 4-Aza-8-chloro-10,11-dihydro-5H-benzo[a,d]cyclo-5-htanone 8-Chloro-5,6-dihydro-benzo[5,6]cyclohta[1,2-b]pyridin-11-one Loratidine Impurity B/ Loratidine Related Compound C 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohta[1,2-β]pyridin-11-one 8-Chloro-10,11-dihydro-4-AZA-5H-dibenzo(a,d)- Cyclohten-5-One(or)(Loraketone) Loratadine tricycline MFCD00800222

Density	1.313g/cm3
Boiling Point	433.6ºC at 760mmHg
Melting Point	90-92ºC
Molecular Formula	C₁₄H₁₀ClNO
Molecular Weight	243.68800
Flash Point	216ºC
Exact Mass	243.04500
PSA	29.96000
LogP	3.06460
Index of Refraction	1.632
Storage condition	-20?C Freezer

Hazard Codes	Xi: Irritant;
RIDADR	NONH for all modes of transport
HS Code	2933990090

Precursor 9
31255-57-9 255861-49-5 271252-79-0 7440-44-0
10026-13-8 15396-37-9 82386-90-1 82386-91-2
251353-78-3
DownStream 6
38089-93-9 38092-89-6 79794-75-5 100643-71-8
117811-12-8 119410-05-8

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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