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| | 4-PHENYLSEMICARBAZIDE Basic information |
| | 4-PHENYLSEMICARBAZIDE Chemical Properties |
| Melting point | 122-125 °C(lit.) | | Boiling point | 273.17°C (rough estimate) | | density | 1.2100 (rough estimate) | | refractive index | 1.5860 (estimate) | | storage temp. | Keep in dark place,Inert atmosphere,Room temperature | | pka | 10.52±0.20(Predicted) | | form | powder to crystal | | color | White to Almost white | | Water Solubility | 699.5mg/L(15 ºC) | | Sensitive | Air Sensitive | | Merck | 14,7312 | | BRN | 511107 | | CAS DataBase Reference | 537-47-3(CAS DataBase Reference) |
| Hazard Codes | Xi | | Safety Statements | 22-24/25 | | WGK Germany | 3 | | F | 8-10-23 | | HS Code | 2928.00.5000 | | HazardClass | IRRITANT |
| | 4-PHENYLSEMICARBAZIDE Usage And Synthesis |
| Chemical Properties | white crystalline powder or flakes | | Definition | ChEBI: Chondroitin sulfate E (GalNAc4,6diS-GlcA), precursor 5a is a member of ureas. | | Purification Methods | Crystallise it from water and dry it in a vacuum over KOH. [Beilstein 12 II 221, 12 III 822.] |
| | 4-PHENYLSEMICARBAZIDE Preparation Products And Raw materials |
| Raw materials | Activated carbon,decolor-->Phenylurea-->4-PHENYLSEMICARBAZIDE HYDROCHLORIDE-->Phenylcarbamic acid phenyl ester-->phenylcarbamic acid-->1-[(E)-Benzylideneamino]-3-phenyl-urea-->2,3,6,7-tetraphenyl-hexahydro-[1,2,4]triazolo[1,2-a][1,2,4]triazole-1,5-dione-->Carbamic chloride, N-phenyl--->N-PHENYLCARBAMIC ACID METHYL ESTER-->Aniline-->PHENYLURETHANE-->Phenyl isocyanate | | Preparation Products | Benzaldehyde-->trans-Cinnamaldehyde |
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