Reported in EPA TSCA Inventory.

ACGIH TLV: TWA 0.1 mg(Hg)/m³ (skin); BEI: 35 µg/g creatinine total inorganic mercury in urine preshift; 15 µg/g creatinine total inorganic mercury in blood at end of shift at end of workweek.
DFG MAK: Confirmed Animal Carcinogen with Unknown Relevance to Humans
NIOSH REL: (Mercury, Aryl and Inorganic) CL 0.1 mg/m³ (skin)
DOT Classification:  6.1; Label: Poison

The Phenylmercuric hydroxide, with the CAS registry number 100-57-2, is also known as Mercury, hydroxyphenyl-. It belongs to the product categories of N-POrganometallic Reagents; Organomercury Alphabetic; Alpha Sort; Others; P; PER - POLA; Pesticides & Metabolites. Its EINECS registry number is 202-866-7. This chemical's molecular formula is C₆H₆HgO and molecular weight is 294.70. What's more, its IUPAC name is called Phenylmercury hydrate.

Physical properties about Phenylmercuric hydroxide are: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 1; (4)Polar Surface Area: 0 Å².

When you are dealing with this chemical, you should be very careful. This chemical may cause damage to health at low levels. It's very toxic by inhalation, in contact with skin and if swallowed. So you should keep it away from food, drink and animal feeding stuffs. After contacting with skin, you should wash immediately with plenty of abluent which is be specified by the manufacturer. In case of accident or if you feel unwell seek medical advice immediately. In addition, it may present an immediate or delayed danger to one or more components of the environment. This chemical very toxic to aquatic organisms and may cause long-term adverse effects in the aquatic environment. What's more, it may cause danger of cumulative effects. Therefore, this material and its container must be disposed of as hazardous waste. And you should refer to special instructions/safety data sheet before releasing it to the environment.

You can still convert the following datas into molecular structure:
(1) SMILES: [OH-].[Hg+]c1ccccc1
(2) InChI: InChI=1S/C6H5.Hg.H2O/c1-2-4-6-5-3-1;;/h1-5H;;1H2/q;+1;/p-1
(3) InChIKey: NWDUDBMLUKJHGK-UHFFFAOYSA-M

The toxicity data is as follows: