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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1252788Generated: November 4, 2026

2,4-Dinitroresorcinol → Styphnic acid

https://huagongshe.com/reaction/1252788

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,4-DinitroresorcinolHCID 10613—
ReactantSulfuric acid, mixt. with nitric acidHCID 71777668—
ProductStyphnic acidHCID 6721—

Reaction Steps

U.S. Pat. No. 2,945,890 to Allan shows a method of preparing 2,4-dinitroresorcinol using a sulfuric acid/nitric acid nitrating solution. Apparently, however, styphnic acid (2,4,6-trinitroresorcinol), an undesirable and explosive side product, is also produced in fairly substantial quantities.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04745232
Source datasetuspto-grants-1988_05
ORD IDord-712c97ef632746c39d1955d513923992
Source noteuspto-grants-1988_05