C20H6Br4Na2O5
691.9 g/mol
Dye & PigmentWarning
Acid red 87
CAS17372-87-1EC241-409-6
Category
Dye & Pigment
Compound Class
Halocarbon
Primary Use
Histological stain for microscopy
Acid red 87, also known as eosin Y, is a fluorescent acidic dye commonly used in histology. It binds to basic or eosinophilic structures such as proteins rich in basic amino acids, staining them dark red or pink for microscopic examination.
histological staining of cytoplasm, collagen, and muscle fibersstaining eosinophilic structures in microscopy
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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CAS 17372-87-1
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Safety Reference
Warning
H319Causes serious eye irritation
H341Suspected of causing genetic defects
Identifiers
IUPAC Name
disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate
InChIKey
SEACYXSIPDVVMV-UHFFFAOYSA-L
SMILES
C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].[Na+].[Na+]
Synonyms (142)
- 11445 Red
- 11731 Red
- 1903 Yellow Pink
- 2,4,5,7-Tetrabromofluorescein
- 4?,5?-Dibromofluorescein
- Acid red 87
- Acid red 87 sodium
- Aizen eosine GH
- Aka230(1)
- Basacid Red 316
- Bromo 4D
- Bromo 4DC
- Bromo 4DL
- Bromo B
- Bromo FL
- Bromo JPS
- Bromo TS
- Bromo X-100
- Bromo XX
- Bromo acid
- Bromoeosine
- Bromofluoresceic acid
- Bromofluorescein
- Bronze Bromo
- C.I. Acid Red 87
- CI 45380 (Na salt)
- Certiqual Eosine
- Cerven kysela 87
- Cerven kysela 87 [Czech]
- D and C Red No. 22
- D&C Red No. 22
- Dawn red
- Disodium Eosin FRP X
- Disodium eosin
- Disodium eosine
- EOSIN [MART.]
- Eosin
- Eosin A
- Eosin Natricum
- Eosin OJ
- Eosin Staining Solution
- Eosin Y
- Eosin Y Disodium Salt
- Eosin Y Disodium Trihydrate
- Eosin Y Sodium
- Eosin Y powder
- Eosin Y sodium salt
- Eosin Y ws
- Eosin Y(water soluble)
- Eosin YS
- Eosin Yellowish (YS)
- Eosin disodium salt
- Eosin gelblich
- Eosin gelblich [German]
- Eosin sodium salt
- Eosin yellowish
- Eosine
- Eosine 3G
- Eosine 3Y
- Eosine A
- Eosine BPC
- Eosine BS
- Eosine BS-SF
- Eosine DA
- Eosine DWC 73
- Eosine Extra Conc. A. Export
- Eosine Extra Yellowish
- Eosine FA
- Eosine G
- Eosine GF
- Eosine GH
- Eosine J
- Eosine K
- Eosine K Salt Free
- Eosine Lake Red Y
- Eosine OJ
- Eosine S 13
- Eosine S13 (bluish)
- Eosine Salt Free
- Eosine Y
- Eosine YB
- Eosine YS
- Eosine Yellowish
- Eosine Yellowish-(YS)
- Eosine disodium
- Eosine sodium salt
- Eosine w/s
- Eosinum natrum
- Eosyn Y
- Fenazo Eosine XG
- Fenazo Eoxine XG
- Hidacid Boiling Bromo
- Hidacid Bromo acid regular
- Hidacid Dibromo Fluorescein
- Hidacid Eosine Soda Salt
- Hidacid White Bromo
- Irgalite Bronze Red CL
- Japan Red 103
- Japan Red 230-1
- Morning red
- Orient Water Red 2
- Phlox Red Toner X-1354
- Phloxine Red 20-7600
- Phloxine Toner B
- Pure Eosine YY
- Red No. 103
- Red No. 223
- Red No. 230-1
- Sodium eosinate
- Sodium eosine
- Symuler Eosin Toner
- Tetrabromofluorescein
- Tetrabromofluorescein D
- Tetrabromofluorescein S
- Tetrabromofluorescein soluble
- Toyo Eosine G
- Water Red 2
- eosin YS dye
- sodium eosin
- water-soluble eosin