HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 993049Generated: October 29, 2026
Hydrogen Bromide → HCID 18408835, compound
https://huagongshe.com/reaction/993049
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrogen Bromide | HCID 260 | — |
| Reactant | Bromine | HCID 24408 | — |
| Reactant | HCID 18408750 | HCID 18408750 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 18408835 | HCID 18408835 | — |
Reaction Steps
To a suspension of 5-(4-Methoxyphenyl)barbituric acid (222 mg) in 3 ml of water, cooled to 0-5° C. with ice bath, are added 136 μl of 48% hydrobromic acid and 56 μl of bromine, dropwise. After 1 hour at a temperature below 10° C., the solid which separated is collected by filtration and washed on the filter with water. The solid is dried for several hours under vacuum at 50° C., to give 283 mg of the product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06472396B1 |
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| Source dataset | uspto-grants-2002_10 |
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| ORD ID | ord-2665cb084cde4d90af098c366a82a8bb |
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| Source note | uspto-grants-2002_10 |
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