Molecular Structure of Disodium 2,5-dihydro-5-thiooxo-1H-tetrazol-1-ylmethanesulfonate (CAS NO.66242-82-8):

Systematic Name: Disodium (5-sulfido-1H-tetrazol-1-yl)methanesulfonate 
Molecular Formula: C₂H₂N₄Na₂O₃S₂
Molecular Weight: 240.17 g/mol
EINECS: 266-274-0
H bond acceptors: 7 
H bond donors: 1 
Freely Rotating Bonds: 2  
Nominal Mass: 240
Average Mass: 240.1718 
Monoisotopic Mass: 239.93637
Product Categories: Organic acids
Melting Point: 247 °C (dec.)(lit.)
Canonical SMILES: [Na+].[Na+].[S-]c1nnnn1CS(=O)([O-])=O
InChI: InChI=1/C2H4N4O3S2.2Na/c7-11(8,9)1-6-2(10)3-4-5-6;;/h1H2,(H,3,5,10)(H,7,8,9);;/q;2*+1/p-2

Safety Information of Disodium 2,5-dihydro-5-thiooxo-1H-tetrazol-1-ylmethanesulfonate (CAS NO.66242-82-8):
Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36: Wear suitable protective clothing.
WGK Germany: 3

  Disodium 2,5-dihydro-5-thiooxo-1H-tetrazol-1-ylmethanesulfonate (CAS NO.66242-82-8), its Synonyms are 1-Sulfomethyl-5-mercaptotetrazole disodium salt ; 5-Mercapto-1,2,3,4-tetrazole-1-methyl sulfonic acid disodium salt ; 5-Mercapto-1H-tetrazole-1-methanesulfonic acid disodium salt ; Disodium 5-sulphido-1H-tetrazole-1-methanesulphonate .