The Nitrosonium hexafluorophosphate with CAS registry number of 16921-91-8 is also known as Phosphate(1-), hexafluoro-, nitrosyl. The IUPAC name is Azanylidyneoxidanium hexafluorophosphate. Its EINECS registry number is 240-980-9. In addition, the formula is F₆NOP and the molecular weight is 174.97. This cehmcial is a colorless or white crystal and should be stored in sealed containers in cool, ventilated, dry place and away from acid.

Physical properties about Nitrosonium hexafluorophosphate are: (1)H-Bond Acceptor: 8; (2)Exact Mass: 174.962169; (3)MonoIsotopic Mass: 174.962169; (4)Topological Polar Surface Area: 24.8; (5)Heavy Atom Count: 9; (6)Complexity: 72.7; (7)Covalently-Bonded Unit Count: 2.

When you are using this chemical, please be cautious about it. This chemical may cause burns. During using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If accident happens or you feel unwell seek medical advice immediately.

You can still convert the following datas into molecular structure:
1. Canonical SMILES: N#[O+].F[P-](F)(F)(F)(F)F
2. InChI: InChI=1S/F6P.NO/c1-7(2,3,4,5)6;1-2/q-1;+1
3. InChIKey: SAKPNYRUBHJGAR-UHFFFAOYSA-N