54-64-8
Product Name:
Thimerosal
Formula:
C9H9HgNaO2S
Synonyms:
Thimerosal;([o-Carboxyphenyl]thio)ethylmercury sodium salt;2-(Ethylmercuriomercapto)benzoic acid sodium salt;Ethylmercurithiosalicylic acid sodium salt;Mercury-([o-carboxyphenyl]thio)ethyl sodium salt
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Mercury((o-carboxyphenyl)thio)ethyl, sodium salt is a light cream-colored crystalline powder with a slight odor: pH (1% aqueous solution) 6.7. Slight odor. (NTP, 1992) |
|---|---|
| Color/Form | Cream colored, crystalline powder |
| Odor | Characteristic odor |
| Boiling Point | 357.3 |
| Melting Point | 450 to 451 °F (decomposes) (NTP, 1992) |
| Solubility | greater than or equal to 100 mg/mL at 66 °F (NTP, 1992) |
| LogP | log Kow = -1.88 /Estimated/ |
| Stability/Shelf Life | Stable in air, but not in sunlight. |
| Decomposition | When heated to decomposition it emits very toxic fumes of /mercury, sodium oxides, and sulfur oxides/. |
| pH | pH (1% solution): 6.7 |
| Other Experimental Properties | Stable in air but not sunlight |
| Chemical Classes | Other Uses -> Preservatives |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
![]() Skull and Crossbones Acute Toxicity GHS06 ![]() Health Hazard GHS08 ![]() Environment GHS09 |
| GHS Hazard Statements |
H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P262:Do not get in eyes, on skin, or on clothing. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P314:Get medical advice/attention if you feel unwell. |
COMPUTED DESCRIPTORS
| Molecular Weight | 404.82 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 3 |
| Exact Mass | 405.992739 g/mol |
| Monoisotopic Mass | 405.992739 g/mol |
| Topological Polar Surface Area | 65.4 Ų |
| Heavy Atom Count | 14 |
| Formal Charge | 0 |
| Complexity | 180 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 2 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Mercury((o-carboxyphenyl)thio)ethyl, sodium salt is a light cream-colored crystalline powder with a slight odor: pH (1% aqueous solution) 6.7. Slight odor. (NTP, 1992)



