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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 8564Generated: October 30, 2026

Narceine

NARCEINE · NARCEIN · CI 15511 · NIH 10760 · henyl)acetyl)- · CI 15511,Narceine · Narceine (base and/or unspecified salts) · 4-(methylenedioxy)phenyl)acetyl)-6-((6-(2-(dimethylamino)ethyl)-2-methoxy-

https://huagongshe.com/en/chemical/8564

Narceine molecular structure

Identifiers & Physical Properties

CAS No.131-28-2
Molecular formulaC23H27NO8
Average molar mass445.5 g/mol
Monoisotopic mass445.17366682 g/mol
SMILESCOc1ccc(C(=O)Cc2c(CCN(C)C)cc3c(c2OC)OCO3)c(C(=O)O)c1OC
InChIKeyDEXMFYZAHXMZNM-UHFFFAOYSA-N
PubChem CID8564
ChEMBLCHEMBL486305
ChEBICHEBI:7480
EC No.205-021-0
DTXSIDDTXSID40156833

Chemical & Physical Properties

XLogP0.5
Topological polar surface area104
Hydrogen bond donors1
Hydrogen bond acceptors9
Rotatable bonds10
Heavy atoms32
Formal charge0
Complexity643
DrugsDEA NFLIS-Drug Category -> Narcotics
Solubility0.78 mg/mL at 13 °C579.1mg/L(15 ºC)
Melting point145 °C138°mp 176°
Physical DescriptionSolid
Boiling point555.14°C (rough estimate)
Density1.3285 (rough estimate)
Refractive index1.5614 (estimate)
pKa (acidity coefficient)pKb (20°) = 10.7, pKa = 9.3
CAS DataBase Reference131-28-2
FDA UNIICTT09X2F1M

Safety & Regulations

GHS classificationWarningH302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 13 reports by companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesAcute Tox. 4 (100%)

Applications & Uses

Description

An alkaloid of opium (Papaver somniferum) was first isolated by Pelletier in 1832 but not characterized until some years later by Couerbe and Anderson, the latter assigning to it the formula C23H2909N which was accepted until Freund showed that it contains H20 of crystallization. The base remains in the mother liquors after removal of the major alkaloids. It forms slender, colourless needles or prisms of the trihydrate, m.p. 170°C. It is optically inactive and dissolves readily in alkalies forming metallic derivatives. It behaves as a weak, monoacidic base forming well-crystallized salts. The hydrochloride crystallizes with 5.5 H20 from cold, dilute HCI, or as the trihydrate from hot solutions. From MeOH it yields crystals with 1 mole of solvent, m.p. 190-2°C. The aurichloride forms reddish-yellow needles, m.p. 130°C and the picrate has m.p. 195°C. With chlorine water, followed by the addition of ammonia, it gives a characteristic blood-red colour while with dilute iodine solution, the solid alkaloid develops a blue colour. With ethyl nitrite, narceine forms an oximino derivative which, on exhaustive methylation, furnishes trimethylamine, hemipinic acid and 2-cyano-3- methoxy-4: s-methylenedioxy-1-vinylbenzene.

Uses

Narceine (Narcein), a quinolone derivative, is an opium alkaloid with anti-diabetic property[1][2].