HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → Carbamimidic acid, methyl ester, sulfate (1:1)
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | Cyanamide | HCID 9864 | — |
| Product | Carbamimidic acid, methyl ester, sulfate (1:1) | HCID 169039 | — |
Reaction Steps
The filtrate from the second batch of crystals was mixed with methanol, sulfuric acid, and cyanamide as described above to produce a third batch of O-methyl-isourea hydrogen sulfate, and the procedure was repeated twice more to produce a total of 6,588 g O-methyl-isourea hydrogen sulfate (93% yield). The mixed product had a melting point of 109° to 112°C and had a nitrogen content of 16.06% compared with a value of 16.27% calculated for C2H8N2O5S.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03931316 |
| Source dataset | uspto-grants-1976_01 |
| ORD ID | ord-49af99f64cca498e8c5e214ddd430dd6 |
| Source note | uspto-grants-1976_01 |