1,3-Dibromo-5,5-dimethylhydantoin

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Names

[ CAS No. ]:
77-48-5

[ Name ]:
1,3-Dibromo-5,5-dimethylhydantoin

[Synonym ]:
N,N'-dibromo-5,5-dimethyl hydantoin
1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione
2,4-Imidazolidinedione, 1,3-dibromo-5,5-dimethyl-
DIBROMANTIN
3-DibroMo-5
DDH
1,3-dibromo-5,5-dimethyl-hydantoin
1,3-Dibromo-5,5-dimethyl-2,4-imidazolidinedione
1,3-Dibromo-5,5-dimethyl hydantoin
EINECS 201-030-9
1,3-Dibromo-5,5-dimethylhydantoin
Bromotoin
dibromantine
BROMTOIN
DIBROMATIN
1,3-Dibromo-5
DBDMH
1,3-dibromo-4,4-dimethyl-2,5-dioxoimidazolidine
MFCD00003189

Chemical & Physical Properties

[ Density]:
2.2±0.1 g/cm3

[ Boiling Point ]:
250.2±23.0 °C at 760 mmHg

[ Melting Point ]:
197-199 °C (dec.)(lit.)

[ Molecular Formula ]:
C5H6Br2N2O2

[ Molecular Weight ]:
285.921

[ Flash Point ]:
105.1±22.6 °C

[ Exact Mass ]:
283.879578

[ PSA ]:
40.62000

[ LogP ]:
1.68

[ Vapour Pressure ]:
0.0±0.5 mmHg at 25°C

[ Index of Refraction ]:
1.622

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
MU0686000
CHEMICAL NAME :
Hydantoin, 1,3-dibromo-5,5-dimethyl-
CAS REGISTRY NUMBER :
77-48-5
BEILSTEIN REFERENCE NO. :
0146024
LAST UPDATED :
199710
DATA ITEMS CITED :
8
MOLECULAR FORMULA :
C5-H6-Br2-N2-O2
MOLECULAR WEIGHT :
285.95
WISWESSER LINE NOTATION :
T5NVNV EHJ AE CE E1 E1

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 :
250 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 36(10),108,1971
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
29 gm/m3/1H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPASR* United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW, Washington, DC 20460) History unknown. Volume(issue)/page/year: 8EHQ-0281-0382
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
20 gm/kg
TOXIC EFFECTS :
Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Behavioral - somnolence (general depressed activity) Skin and Appendages - hair
REFERENCE :
EPASR* United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW, Washington, DC 20460) History unknown. Volume(issue)/page/year: 8EHQ-0581-0382 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
52 mg/kg/17W-I
TOXIC EFFECTS :
Endocrine - evidence of thyroid hypofunction
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 36(10),108,1971 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83854 No. of Facilities: 21 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 124 (estimated)

Safety Information

[ Symbol ]:

GHS03, GHS05, GHS06, GHS09

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H272-H301-H314-H317-H410

[ Precautionary Statements ]:
Missing Phrase - N15.00950417-P210-P220-P280-P305 + P351 + P338-P370 + P378

[ 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 ]:
R22;R34;R50;R8

[ Safety Phrases ]:
S17-S26-S36/37/39-S45-S60-S61

[ RIDADR ]:
UN 3087 5.1/PG 2

[ WGK Germany ]:
3

[ RTECS ]:
MU0686000

[ Packaging Group ]:
II

[ Hazard Class ]:
5.1

[ HS Code ]:
29332100

Synthetic Route

Precursor & DownStream

Precursor

  • 5,5-Dimethylimidazolidine-2,4-dione
  • 1,3-Dichloro-5,5-dimethylhydantoin
  • Sodium cyanide
  • Acetone

DownStream

  • 1,6-Dibromopyrene
  • 1,8-Dibromopyrene
  • Cyclohexanone
  • 1-N,1-N,6-N,6-N-tetrakis(4-methylphenyl)pyrene-1,6-diamine
  • 1-N,1-N,8-N,8-N-tetrakis(4-methylphenyl)pyrene-1,8-diamine
  • 2-(brommethyl)naphthalen
  • Acetamide,N-(4-bromo-1-naphthalenyl)-
  • Benzyl bromide
  • 4-Bromoveratrole
  • 3-methoxybenzyl bromide

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%

Articles

Determination of selenium sulfide using 1,3-dibromo-5,5-dimethylhydantoin (DBH). Analytical methods of pharmacopeias with DBH in respect to environmental and economical concern Part 11.

J. Pharm. Biomed. Anal. 28(2) , 337-43, (2002)

USP 2000 (The United States Pharmacopeia, Rockville, MD, 24th ed., 2000, pp. 1514-1515) and PH. EUR. 1997 (European Pharmacopoeia, 3rd ed., Council of Europe, Strasbourg, 1997, p. 1459) dissolve selen...

Titrimetric determination of acetylenic hyponotics using organic brominating agents.

Pharm. Weekbl. Sci. 10(2) , 90-2, (1988)

A titrimetric method is described for the determination of three acetylenic hypnotics, namely ethchlorvynol, ethinamate, and methylpentynol carbamate, in bulk and in dosage forms. The method involves ...

Determination of iron limiting values according to PH. EUR. using 1,3-dibromo-5,5-dimethylhydantoin (DBH) instead of elemental bromine. Analytical methods of pharmacopoeias with DBH in respect to environmental and economical concern. Part 8.

Pharmazie 57(1) , 45-8, (2002)

PH. EUR. 2002 uses elemental bromine performing iron limit tests for maleic acid (iron 5 ppm) and titanium dioxide (iron 200 ppm). 1,3-Dibromo-5,5-dimethylhydantoin (DBH) can replace bromine water. Fo...


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Related Compounds

  • 1,3-dibromo-5,5-diphenylimidazolidine-2,4-dione
  • 1,3-dibromo-5,5-diethyl-1,3-diazinane-2,4,6-trione
  • 2,4-Imidazolidinedione,1,3-dibromo-
  • 1-BROMO-5,5-DIMETHYLHYDANTOIN
  • 1,3-dibromo-5-(3,5-dibromo-4-prop-2-enoxyphenyl)sulfonyl-2-prop-2-enoxybenzene
  • 1,3-dibromo-5-(3,5-dibromophenoxy)benzene