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Home > Encyclopedia > Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-, sodium salt (1:2)

Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-, sodium salt (1:2)

Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-, sodium salt (1:2) structure

Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-, sodium salt (1:2) 

structure
  • CAS No:

    548-26-5

  • Formula:

    C20H8Br4O5.2Na

  • Chemical Name:

    Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-, sodium salt (1:2)

  • Synonyms:

    Benzoic acid,2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-,sodium salt (1:2);Fluorescein,2′,4′,5′,7′-tetrabromo-,disodium salt;Benzoic acid,2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-,disodium salt;11445 Red;11731 Red;C.I. 45380;Aizen Eosine GH;Bromo B;Bromo X-100;Bromo 4D;Bromo 4DC;Bromo 4DL;Bromo Acid;Bromoeosine;Bromo FL;Bromofluoresceic acid;Bromo Fluorescein;Bromo JPS;Bromo TS;Bromo XX;Bronze Bromo;Certiqual Eosine;C.I. Acid Red 87;Eosine B;Eosine J;Eosine w/s;Eosine 3G;Eosine 3Y;Eosine BPC;Eosine BS;Eosine BS-SF;Eosine DA;Eosine DWC 73;Eosine Extra Conc. A. Export;Eosine FA;Eosine GF;Eosine Lake Red Y;Eosine OJ;Eosine K Salt Free;Eosine Salt Free;Eosine YB;Eosine YS;Eosin YS;Fenazo Eosine XG;Hidacid Boiling Bromo;Hidacid Bromo acid regular;Hidacid Dibromo Fluorescein;Hidacid Eosine Soda Salt;Hidacid White Bromo;Irgalite Bronze Red CL;Phloxine Red 20-7600;Phloxine Toner B;Phlox Red Toner X-1354;Pure Eosine YY;Symuler Eosin Toner;2,4,5,7-Tetrabromo-3,6-fluorandiol;Tetrabromofluorescein D;Tetrabromofluorescein S;Tetrabromofluorescein soluble;Toyo Eosine G;1903 Yellow Pink;D and C Red No. 22;Eosine A;Sodium eosine;Eosine S 13;Eosin yellowish

  • Categories:

    Cosmetic Ingredient  >  Cosmetic Colorant

Description

Red, crystalline powder. Soluble in alcohol and acetic acid; insoluble in water. The potassium and sodium salts are soluble in water.


Eosin is a red crystalline powder. (NTP, 1992)


Eosin is a red crystalline powder. (NTP, 1992)|Eosin YS dye is an organic sodium salt that is 2',4',5',7'-tetrabromofluorescein in which the carboxy group and the phenolic hydroxy group have been deprotonated and the resulting charge is neutralised by two sodium ions. It has a role as a fluorochrome and a histological dye. It is an organobromine compound and an organic sodium salt. It contains a 2',4',5',7'-tetrabromofluorescein(2-).|A versatile red dye used in cosmetics, pharmaceuticals, textiles, etc., and as tissue stain, vital stain, and counterstain with HEMATOXYLIN. It is also used in special culture media.

Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-, sodium salt (1:2) Basic Attributes

647.89

643.71100

TDQ283MPCW

DTXSID0025234

D - Dermatologicals

32041200

Characteristics

75.99000

6.71580

Eosin is a red crystalline powder. (NTP, 1992)

2.41 g/cm3

572 °F (decomposes) (NTP, 1992)

682.3ºC at 760 mmHg

366.5ºC

1.842

greater than or equal to 100 mg/mL at 70° F (NTP, 1992)

Intravenous-Mouse LD50: 550 mg/kg

Thermal decomposition to emit toxic bromide fumes

Water soluble.

Esters, Sulfate Esters, Phosphate Esters, Thiophosphate Esters, and Borate Esters

Safety Information

68-36

36/37-26

Warehouse ventilated, low temperature and dry

Flash point data for this chemical are not available; however, it is probably combustible. (NTP, 1992)

|Warning|H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]|P201, P202, P264, P280, P281, P305+P351+P338, P308+P313, P337+P313, P405, and P501|The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)

SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned. STORAGE PRECAUTIONS: You should store this material in a refrigerator. (NTP, 1992)

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)

Toxicity

moderately toxic

Drug Information

Chemicals that emit light after excitation by light. The wave length of the emitted light is usually longer than that of the incident light. Fluorochromes are substances that cause fluorescence in other substances, i.e., dyes used to mark or label other compounds with fluorescent tags. (See all compounds classified as Fluorescent Dyes.)

SYMPTOMS: Symptoms of exposure to this chemical include cheilitis, facial dermatitis and stomatitis. ACUTE/CHRONIC HAZARDS: When heated to decomposition this compound emits very toxic fumes. (NTP, 1992)

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop. SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment. INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing. INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

Acid Red 87

Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-, sodium salt (1:2) Use and Manufacturing

Uses

Mainly used for making red ink and red pencil, but also for dyeing wool

Cosmetics -> Cosmetic colorant

Computed Properties

Molecular Weight:691.9
Hydrogen Bond Acceptor Count:5
Rotatable Bond Count:1
Exact Mass:691.67031
Monoisotopic Mass:687.67441
Topological Polar Surface Area:89.5
Heavy Atom Count:31
Complexity:797
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes

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