HEPES sodium salt

IUPAC Name: Sodium 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonate
Molecular Formula: C₈H₁₇N₂NaO₄S
Molecular Weight: 260.29 g/mol
Canonical SMILES: [Na+].N1(CCN(CC1)CCO)CCS(=O)(=O)[O-]
InChI: InChI=1/C8H17N2O4S.Na/c11-7-5-9-1-3-10(4-2-9)6-8-15(12,13)14;/h11H,1-8H2,(H,12,13,14);/q;+1/p-1
Mol File: 75277-39-3.mol
EINECS: 278-169-7
Classification Code: TSCA Flag P [A commenced PMN (Premanufacture Notice) substance]
Product Categories: Buffer;Biotechnology Performance Certified (BPC) BuffersBiological Buffers;Buffer SolutionsBiological Buffers; Good Buffers;Biological Buffers; Buffer Convenience Packaging; Buffers A to ZBiological Buffers
Solubility: H₂O: 1 M at 20 °C, clear, colorless
Form: dry powder
Stability: Stable. Hygroscopic - protect from moisture. Incompatible with strong oxidizing agents.
H-Bond Donor: 1
H-Bond Acceptor: 6
Rotatable Bond Count: 5
Exact Mass: 260.080672
MonoIsotopic Mass: 260.080672
Topological Polar Surface Area: 83.9
Heavy Atom Count: 16
Complexity: 272
Melting Point of 1-Piperazineethanesulfonicacid, 4-(2-hydroxyethyl)-, sodium salt (1:1) (CAS NO.75277-39-3): 234 °C

Safety Statements: 22-24/25 
S22: Do not breathe dust. 
S24/25: Avoid contact with skin and eyes.
WGK Germany: 3
HS Code of 1-Piperazineethanesulfonicacid, 4-(2-hydroxyethyl)-, sodium salt (1:1) (CAS NO.75277-39-3): 29335995

 1-Piperazineethanesulfonicacid, 4-(2-hydroxyethyl)-, sodium salt (1:1) (CAS NO.75277-39-3), its Synonyms are 1-Piperazineethanesulfonic acid, 4-(2-hydroxyethyl)-, monosodium salt ; Sodium 4-(2-hydroxyethyl)piperazin-1-ylethanesulphonate ; 2-[4-(2-Hydroxyethyl)-1-piperazinyl]ethanesulfonic acid sodium salt ; 2-[4-(2-Hydroxyethyl)-1-piperazine]ethanesulfonic acid sodium salt ; 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid, disodium salt ; 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid hemisodium salt ; 4-(2-Hydroxyethyl)-1-piperazineethane-sulfonic acid half-sodium salt ; 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt buffer ; 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt ; 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid, sodium salt . It is white powder.