2-Thiohydantoin

Modify Date: 2025-08-25 18:01:12

2-Thiohydantoin Structure
2-Thiohydantoin structure
 Common Name 2-Thiohydantoin
CAS Number 503-87-7 Molecular Weight 116.142
Density 1.5±0.1 g/cm3 Boiling Point N/A
Molecular Formula C3H4N2OS Melting Point 229-231 °C (dec.)(lit.)
MSDS N/A Flash Point N/A

 Use of 2-Thiohydantoin


2-Thiohydantoin acts as an inhibitor for the corrosion of mild steel in 0.1 M HCl and its inhibition efficiency is both concentration and immersion time dependent[1].

 Names

Name 2-Thioxo-4-imidazolidinone NSC 11772
Synonym More Synonyms

 2-Thiohydantoin Biological Activity

Description 2-Thiohydantoin acts as an inhibitor for the corrosion of mild steel in 0.1 M HCl and its inhibition efficiency is both concentration and immersion time dependent[1].
Related Catalog
References

[1]. Ayşe OngunYüce, et al. Adsorption and inhibition effect of 2-thiohydantoin on mild steel corrosion in 0.1 M HCl. Corrosion Science. 2012, May (58): 86-94.

 Chemical & Physical Properties

Density 1.5±0.1 g/cm3
Melting Point 229-231 °C (dec.)(lit.)
Molecular Formula C3H4N2OS
Molecular Weight 116.142
Exact Mass 116.004433
PSA 73.22000
LogP -0.62
Vapour density 4 (vs air)
Index of Refraction 1.655
InChIKey UGWULZWUXSCWPX-UHFFFAOYSA-N
SMILES O=C1CNC(=S)N1

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
MU4200000
CHEMICAL NAME :
Hydantoin, 2-thio-
CAS REGISTRY NUMBER :
503-87-7
BEILSTEIN REFERENCE NO. :
0110599
LAST UPDATED :
199701
DATA ITEMS CITED :
5
MOLECULAR FORMULA :
C3-H4-N2-O-S
MOLECULAR WEIGHT :
116.15
WISWESSER LINE NOTATION :
T5MYMV EHJ BUS

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
420 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
BJPCAL British Journal of Pharmacology and Chemotherapy. (London, UK) V.1-33, 1946-68. For publisher information, see BJPCBM. Volume(issue)/page/year: 13,350,1958
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
417 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
KHFZAN Khimiko-Farmatsevticheskii Zhurnal. Chemical Pharmaceutical Journal. For English translation, see PCJOAU. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1967- Volume(issue)/page/year: 24(4),32,1990
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X6631 No. of Facilities: 7 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 1822 (estimated) No. of Female Employees: 272 (estimated)

 Safety Information

Hazard Codes Xn:Harmful;
Risk Phrases R22
Safety Phrases S36
WGK Germany 3
RTECS MU4200000
HS Code 2933990090

 Synthetic Route

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

MFCD00005277
2-thioxoimidazolidin-4-one
thiohydantoin
2-sulfanylideneimidazolidin-4-one
4-Imidazolidinone, 2-thioxo-
2-Thioxo-4-imidazolidinone
EINECS 207-977-4
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