CAS Number 7772-98-7 is the registry number for Sodium Thiosulfate (Na₂S₂O₃, MW 158.11 g/mol). Non-hazardous.
| CAS Number | 7772-98-7 |
| Chemical Name | Sodium Thiosulfate |
| Molecular Formula | Na₂S₂O₃ |
| Molecular Weight | 158.11 g/mol |
| Category | Inorganic Salt |
| Available Grades | Technical/Photographic grade |
Sodium hyposulfite · Hypo · Photographer's hypo