Hyposulfite may refer to:
2O2−
3)
2O2−
2, a reported sulfur oxyanion. However salts containing S
2O2−
2 and HS
2O−
2 are not well characterized; they would be conjugate bases derived from the parent hyposulfurous acid (H
2S
2O
2), which is also of doubtful existence.
References
Hyposulfite Wikipedia(Text) CC BY-SA