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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1579037Generated: November 4, 2026

Sulfuric Acid → HCID 178481319, compound

https://huagongshe.com/reaction/1579037

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantThiosemicarbazideHCID 2723789—
ReactantEthyl 1-methyl-5-nitro-1H-imidazole-2-carboximidateHCID 21432269—
SolventMethanolHCID 887—
ProductHCID 178481319HCID 178481319—

Reaction Steps

To a stirred mixture of ethyl 1-methyl-5-nitro-2-imidazolecarboximidate (0.198 g., 0.001 mole) and thiosemicarbazide (0.091 g., 0.001 mole) in 5 ml. of methanol is added 1 drop of cone. H2SO4 and the mixture is stirred at room temperature for 50 minutes. The solid is filtered and washed with methanol, yielding 0.149 g. of the title compound, melting point 200°-201°C. dec.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03940411
Source datasetuspto-grants-1976_02
ORD IDord-8f8b8bce08c0400bab6fa6427ad6c26f
Source noteuspto-grants-1976_02