Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4,4′-Thiodiphenol
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 4,4′-Thiodiphenol
Price: ￥478.0/500g ￥128.0/100g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4,4'-Thiobis-phenol
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Thiodiphenol (TDP)
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: 4,4′-Thiodiphenol
Price: ￥Inquiry/25kg
Purity: 99.0%
Stocking Period: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

2664-63-3

2664-63-3 structure

Name: 4,4′-Thiodiphenol
Chemical Name: 4,4'-thiodiphenol
CAS Number: 2664-63-3
Molecular Formula: C₁₂H₁₀O₂S
Molecular Weight: 218.272
Catalog: Chemical reagent Organic reagent Thiol/thiophenol
Create Date: 2018-08-16 08:33:48
Modify Date: 2025-08-23 13:37:31

Name	4,4'-thiodiphenol
Synonyms	Bis(4-hydroxyphenyl) sulfide Thiobisphenol 4,4'-Thiobisphenol MFCD00002349 Phenol, 4,4'-thiobis- 4-(4-hydroxyphenyl)sulfanylphenol 4-hydroxyphenyl sulphide p,p'-Dihydroxydiphenyl sulfide 4,4′-Thiodiphenol 4,4'-thiodiphenol 4,4'-Thiobis-phenol 4,4'-dihydroxyldiphenyl sulfide 4,4'-Sulfanediyldiphenol 4,4'-Dihydroxydiphenyl sulfide 4,4-Thiodiphenol EINECS 220-197-9 Phenol,4,4'-thiobis 4,4'-Dihydroxy diphenyl sulfide

Density	1.4±0.1 g/cm3
Boiling Point	452.7±30.0 °C at 760 mmHg
Melting Point	154-156 °C(lit.)
Molecular Formula	C₁₂H₁₀O₂S
Molecular Weight	218.272
Flash Point	219.7±23.3 °C
Exact Mass	218.040146
PSA	65.76000
LogP	3.34
Vapour Pressure	0.0±1.1 mmHg at 25°C
Index of Refraction	1.717

CHEMICAL IDENTIFICATION

RTECS NUMBER :: SN0800000

CHEMICAL NAME :: Phenol, 4,4'-thiodi-

CAS REGISTRY NUMBER :: 2664-63-3

LAST UPDATED :: 199710

DATA ITEMS CITED :: 9

MOLECULAR FORMULA :: C12-H10-O2-S

MOLECULAR WEIGHT :: 218.28

WISWESSER LINE NOTATION :: QR DSR DQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: BIOFX* BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. (1810 Frontage Rd., Northbrook, IL 60062) Volume(issue)/page/year: A408,1971

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: BIOFX* BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. (1810 Frontage Rd., Northbrook, IL 60062) Volume(issue)/page/year: A408,1971 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3362 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: BIOFX* BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. (1810 Frontage Rd., Northbrook, IL 60062) Volume(issue)/page/year: A408,1971

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 5500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv. Toxicology of New Industrial Chemical Substances. For English translation, see TNICS*. (Izdatel'stvo Meditsina, Moscow, USSR) No.1- 1961- Volume(issue)/page/year: 13,154,1973

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >10250 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: BIOFX* BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. (1810 Frontage Rd., Northbrook, IL 60062) Volume(issue)/page/year: A408,1971 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-RUSSIA:STEL 3 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - T0044 No. of Facilities: 69 (estimated) No. of Industries: 3 No. of Occupations: 3 No. of Employees: 1146 (estimated)

Symbol	GHS05
Signal Word	Danger
Hazard Statements	H314
Precautionary Statements	P280-P305 + P351 + P338-P310
Personal Protective Equipment	Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes	C:Corrosive;
Risk Phrases	R34
Safety Phrases	S26-S27-S36/37/39-S45
RIDADR	UN 3261 8/PG 2
WGK Germany	2
RTECS	SN0800000
Packaging Group	II
Hazard Class	8
HS Code	29309070

Precursor 9
1774-34-1 108-95-2 106-41-2 139-65-1
540-38-5 19089-85-1 106-48-9 17755-35-0
7732-18-5
DownStream 10
105112-85-4 3393-77-9 3383-96-8 637-89-8
101657-79-8 80-09-1 1774-34-1 16558-06-8
63449-96-7 63538-12-5

HS Code	29309070

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2664-63-3	6275-69-0
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1881321-02-3	1881330-97-7
1881320-56-4	2309260-03-3
2320377-45-3	2320209-12-7
2097935-19-6	2097933-72-5