![Molecular structure of 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one (CAS 31251-41-9)](/images/chem_structures_svg/254/31251-41-9.svg)
8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one
Also known as: Loratadine Impurity 2, Loratadine EP Impurity B, Loratadine Related Compound C (USP), 8-Chloro-10,11-dihydro-4-aza-5H-dibenzo[a,d]cycloheptan-5-one, 8-Chloro-10,11-dihydro-4-aza-5H-benzo[a,d]cycloheptan-5-one, MFCD00800222, 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one
8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one (CAS 31251-41-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H10ClNO and a molecular weight of 243.68800 g/mol. Key properties include a melting point of 90-92ºC, a boiling point of 433.6ºC at 760mmHg, a density of 1.313g/cm3 and a flash point of 216ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 31251-41-9
- Jingsj CID
- J-1062198-4
- Molecular Formula
- C14H10ClNO
- Molecular Weight
- 243.68800 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 90-92ºC |
|---|---|
| Boiling Point | 433.6ºC at 760mmHg |
| Density | 1.313g/cm3 |
| Flash Point | 216ºC |
| Exact Mass | 243.04500 |
| PSA | 29.96000 |
| LogP | 3.06460 |
| Refractive Index | 1.632 |
| Storage Conditions | -20?C Freezer |
Customs & Trade Information
| 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% |
Frequently Asked Questions
What is the CAS number of 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one?
The CAS number of 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one is 31251-41-9.
What are the molecular formula and molecular weight of 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one?
8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one has molecular formula C14H10ClNO and molecular weight 243.68800 g/mol.
What are the upstream and downstream products of 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one?
For 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one, Upstream Products: 3-[2-(3-Chlorophenyl)ethyl]-2-pyridinecarbonitrile, Carbon, 3,5-dichloro-2-iodobenzoic acid; Downstream Products: 8-Chloro-6,11-dihydro-11-(1-methyl-4-piperidinyl)-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ol, 8-Chloro-11-(1-methyl-4-piperidinylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine, Loratadine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one (CAS 31251-41-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1062198-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.