| Name | PHENYLHYDRAZINE DISODIUM SULFONATE |
| Synonyms | PHENYLHYDRAZINE DISODIUM SULFONATE 1-Phenyl-1,2-hydrazine disulfonic acid disodium salt |
| CAS | 85095-81-4 |
| Use | Use intermediate of antipyrine. |
Diazotization with aniline to produce diazobenzene chloride, and then reduction with sodium sulfite and sodium bisulfite to obtain the product.