Agent Name

Bithionol

CAS Number

97-18-7

Formula

C12-H6-Cl4-O2-S

Major Category

Other Uses

Synonyms

2,2'-Dihydroxy-3,3',5,5'-tetrachlorodiphenyl sulfide; 2,2'-Dihydroxy-3,3',5,5'-tetrachlorodiphenylsulfide; 2,2'-Thiobis(4,6-dichlorophenol); 2-Hydroxy-3,5-dichlorophenyl sulfide; 2-Hydroxy-3,5-dichlorophenyl sulphide; Actamer; Bidiphen; Bis(2-hydroxy-3,5-dichlorophenyl) sulfide; Bis(3,5-dichloro-2-hydroxyphenyl) sulfide; Bisoxyphen; Bithin; Bithionol sulfide; Bithionolate; Bithionolum [INN-Latin]; Bitin; Bitionol [INN-Spanish]; CP 3438; D 26; Lorothidol; Lorothiodol; Neopellis; Nobacter; TBP; TKhsd; UNII-AMT77LS62O; Vancide BL; XL 7; Phenol, 2,2'-thiobis(4,6-dichloro-; [ChemIDplus] UN2811

Category

Biocides/Disinfectants

Description

White or grayish-white, crystalline powder; [HSDB]

Sources/Uses

Bithionol is one of the biocides commonly used in metalworking fluids. [Occupational Exposure to Metalworking Fluids. DHHS (NIOSH) Publication No. 98-102, 1998, Table 4-1] As an antimicrobial agent, it is active against bacteria and fungi. [Merck Index, #1306] It is used in agricultural fungicides and industrial cleansers. [Marks, p. 228]

Comments

A potent photosensitizer; [Marks, p. 227] A skin irritant; [CAMEO] Danger of photo-contact sensitization; [MAK]

Restricted

Use in cosmetics, soaps, and other personal products banned by the FDA. [Marks, p. 227]

Exposure Assessment
Vapor Pressure

1.1E-9 mm Hg

Adverse Effects
Skin Sensitizer

Yes

Dermatotoxin

Contact Dermatitis, Photoallergic

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: