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Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate

Also known as: Diludine, Hantzsch ester, Diethyl 2,6-dimethyl-1,4-dihydro-3,5-pyridinedicarboxylate, 1,4-Dihydro-2,6-dimethyl-3,5-pyridinedicarboxylic acid diethyl ester, 3,5-Diethoxycarbonyl-1,4-dihydro-2,6-dimethylpyridine

Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate (CAS 1149-23-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H19NO4 and a molecular weight of 253.294 g/mol. Key properties include a melting point of 178-183 °C(lit.), a boiling point of 351.8±42.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 166.6±27.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1149-23-1
Jingsj CID
J-1101692-0
Molecular Formula
C13H19NO4
Molecular Weight
253.294 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point178-183 °C(lit.)
Boiling Point351.8±42.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point166.6±27.9 °C
Exact Mass253.131409
PSA64.63000
LogP2.52
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.489

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. 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 Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate?

The CAS number of Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate is 1149-23-1.

What are the molecular formula and molecular weight of Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate?

Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate has molecular formula C13H19NO4 and molecular weight 253.294 g/mol.

Is Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate hazardous?

Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate?

For Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate, Upstream Products: Formaldehyde, Ethyl acetoacetate, Ammonium acetate; Downstream Products: Diethyl 2,6-dimethylpyridine-3,5-dicarboxylate, 2-(4-METHOXYBENZYL)MALONONITRILE, Diethyl fumarate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate (CAS 1149-23-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1101692-0 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.