Methyl 1,4-dioxo-1,2,3,4-tetrahydroisoquinoline-3-carboxylate
3-甲氧羰基-1,2,3,4-四氢异喹啉-1,4-二酮
Also known as: 3-Carbomethoxy-1,2,3,4-tetrahydroisoquinoline-1,4-dione, 3-Isoquinolinecarboxylic acid, 1,2,3,4-tetrahydro-1,4-dioxo-, methyl ester, Methyl 1,4-dioxo-2,3-dihydroisoquinoline-3-carboxylate, 1,4-Dioxo-1,2,3,4-tetrahydro-isochinolin-3-carbonsaeuremethylester, I08-1150, MFCD03425940, CS-0204882, AKOS024015182, BP-11500, BS-24861
Methyl 1,4-dioxo-1,2,3,4-tetrahydroisoquinoline-3-carboxylate (CAS 91092-92-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H9NO4 and a molecular weight of 219.19300 g/mol. It is also known as 3-Carbomethoxy-1,2,3,4-tetrahydroisoquinoline-1,4-dione, 3-Isoquinolinecarboxylic acid, 1,2,3,4-tetrahydro-1,4-dioxo-, methyl ester and Methyl 1,4-dioxo-2,3-dihydroisoquinoline-3-carboxylate. Key properties include a melting point of 220-224ºC(lit.), a boiling point of 481.2ºC at 760 mmHg, a density of 1.345g/cm3 and a flash point of 244.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 91092-92-1
- Jingsj CID
- J-9195-4
- Molecular Formula
- C11H9NO4
- Chinese Name
- 3-甲氧羰基-1,2,3,4-四氢异喹啉-1,4-二酮
- Molecular Weight
- 219.19300 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 220-224ºC(lit.) |
|---|---|
| Boiling Point | 481.2ºC at 760 mmHg |
| Density | 1.345g/cm3 |
| Flash Point | 244.8ºC |
| Exact Mass | 219.05300 |
| PSA | 72.47000 |
| LogP | 0.48310 |
| Refractive Index | 1.564 |
Customs & Trade Information
| HS Code | 2933499090 |
|---|---|
| Summary | 2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. 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 Methyl 1,4-dioxo-1,2,3,4-tetrahydroisoquinoline-3-carboxylate?
The CAS number of Methyl 1,4-dioxo-1,2,3,4-tetrahydroisoquinoline-3-carboxylate is 91092-92-1.
What are the molecular formula and molecular weight of Methyl 1,4-dioxo-1,2,3,4-tetrahydroisoquinoline-3-carboxylate?
Methyl 1,4-dioxo-1,2,3,4-tetrahydroisoquinoline-3-carboxylate has molecular formula C11H9NO4 and molecular weight 219.19300 g/mol.
What are the upstream and downstream products of Methyl 1,4-dioxo-1,2,3,4-tetrahydroisoquinoline-3-carboxylate?
For Methyl 1,4-dioxo-1,2,3,4-tetrahydroisoquinoline-3-carboxylate, Downstream Products: methyl 1-chloro-4-hydroxyisoquinoline-3-carboxylate.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl 1,4-dioxo-1,2,3,4-tetrahydroisoquinoline-3-carboxylate (CAS 91092-92-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9195-4 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.