HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Compound

Mercury dibromofluorescein disodium salt

HCID 441373
New noteNew reactionRequest quotes
Print preview
Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
Substructure searchFind similar structures

Basic information

CAS
129-16-8
Standard SMILES
O.O=C([O-])c1ccccc1-c1c2cc(Br)c(=O)cc-2oc2[c]([Hg])c([O-])c(Br)cc12.[Na+].[Na+]
InChIKey
KQSRXDXJGUJRKE-UHFFFAOYSA-L
Molecular formula
C20H9Br2HgNa2O6
Average molar mass
751.7 g/mol
Monoisotopic mass
750.82677

Overview

Merbromin is an organic sodium salt that is 2,7-dibromo-4-hydroxymercurifluorescein 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 an antiseptic drug, a fluorochrome and a histological dye. It contains a 2,7-dibromo-4-hydroxymercurifluorescein(2-).

Names & identifiers

Preferred name
Mercury dibromofluorescein disodium salt
IUPAC
disodium;[2,7-dibromo-9-(2-carboxylatophenyl)-3-oxido-6-oxoxanthen-4-yl]mercury;hydrate
English name
MERBROMIN
Molecular formula
C20H11Br2HgNaO6
Molecular weight
730.69

Names & synonyms

Mercury dibromofluorescein disodium saltdisodium;[2,7-dibromo-9-(2-carboxylatophenyl)-3-oxido-6-oxoxanthen-4-yl]mercury;hydrateCinfacrominMerbrominoMercuriocromoSupercromeSodium merbrominSodium mercuresceinMerbromin N.F XIISCHEMBL25312SPECTRUM1500637orb1310778
Show more names
Hg2sb2o7fluorochromeMERCUROCHROMEdomfEmcerolflavurolChromineEkakromeMERBROMINMarbromin
HMS501E17DTXSID701015061HMS1921M15HMS2092E12CCG-39726AKOS015903744AKOS037515483DB13392

Database identifiers

CAS
129-16-8、15015-80-2
PubChem CID
441373
DTXSID

Properties

Computed structural properties

Topological polar surface area
90.5 Ų
Hydrogen bond donors
1
Hydrogen bond acceptors
6
Rotatable bonds
2
Heavy atoms
31
Formal charge
0
Complexity
801

Physicochemical properties

Melting point
300 °C · ≥300 °C
storage temp.
Poison room
solubility
50 mg/mL · Water : ≥ 50 mg/mL (66.43 mM);DMSO : 6.67 mg/mL (8.86 mM)
form
crystalline
color
green
Odor
Odorless
PH Range
8.5 · 8.5 - 9
Water Solubility
2.561 g/L · 2.561g/L at 25℃
Merck
13 · 13,5892
Stability
Stable. Incompatible with strong oxidizing agents, strong acids.
InChI
InChI=1S/C20H9Br2O5.Hg.Na.H2O.H/c21-13-5-11-17(7-15(13)23)26-18-8-16(24)14(22)6-12(18)20(11)10-4-2-1-3-9(10)19(25)27-20;;;;/h1-7,23-24H;;;1H2;/q;+1;;;/p-1
InChIKey
DWCWFRMTTRCCLB-UHFFFAOYSA-M
SMILES
O=C1C2C=CC=CC=2C2(C3=CC(Br)=C(O)C=C3OC3C(=C(O)C(Br)=CC2=3)[Hg]O)O1.[NaH]
LogP
1.418 at · 1.418 at 25℃
CAS DataBase Reference
129 · 129-16-8(CAS DataBase Reference)

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

Safety & protection

Minimum Risk LevelChronic Inhalation: 0.0002 mg/m3 (Mercury) (L134)

Toxicology

Treatment · 1 item

EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration.

Health Effects · 1 item

Mercury mainly affects the nervous system. Exposure to high levels of metallic, inorganic, or organic mercury can permanently damage the brain, kidneys, and developing fetus. Effects on brain functioning may result in irritability, shyness, tremors, changes in vision or hearing, and memory problems. Acrodynia, a type of mercury poisoning in children, is characterized by pain and pink discoloration of the hands and feet. Mercury poisoning can also cause Hunter-Russell syndrome and Minamata disease. Bromine vapour causes irritation and direct damage to the mucous membranes. Elemental bromine also burns the skin. The bromide ion is a central nervous system depressant and chronic exposure produces neuronal effects. This is called bromism and can result in central reactions reaching from somnolence to coma, cachexia, exicosis, loss of reflexes or pathologic reflexes, clonic seizures, tremor, ataxia, loss of neural sensitivity, paresis, papillar edema of the eyes, abnormal speech, cerebral edema, delirium, aggressiveness, and psychoses. (L625, L626, L627, L7)

Exposure RoutesOral (L7) ; inhalation (L7) ; dermal (L7)
Toxicity Summary · 1 item

Chemistry & industry

Pharmacology

Metabolism/Metabolites · 1 item

Organic mercury is absorbed mainly by the gastrointestinal tract, then distributed throughout the body via the bloodstream. Organic mercury complexes with free cysteine and the cysteine and sulfhydryl groups on proteins such as haemoglobin. These complexes are able to mimic methionine and thus be transported throughout the body, including through the blood-brain barrier and placenta. Organic mercury is metabolized into inorganic mercury, which is eventually excreted in the urine and faeces. Bromine is mainly absorbed via inhalation, but may also enter the body through dermal contact. Bromine salts can be ingested. Due to its reactivity, bromine quickly forms bromide and may be deposited in the tissues, displacing other halogens. (L626, T11)

Uses & manufacturing

UsesMerbromin is used as a topical antiseptic for minor cuts and scrapes. It is also used as a biological dye to mark tissue margins, and as a metal dye in industrial dye penetrant inspection to detect metal fractures. (L264)

Applications

Usesanthelmintic

UsesAntiseptic and applied topically

Upstream & downstream products

Upstream raw materials

ResorcinolPhthalic acidMercuric Oxide

Additional notes

DefinitionChEBI: An organic sodium salt that is 2,7-dibromo-4-hydroxymercurifluorescein in which the carboxy group and the phenolic hydroxy group have been deprotonated and the resulting charge is neutralised by two sodium ions.

Related reactions

0 records
New reaction record

No reaction records under the current filter.

Compound notes

Loading…

On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
More actions
New noteNew reactionRequest quotes
DTXSID701015061
ChEBI
CHEBI:6763
FDA 21 CFR
310.545 · 310.545
FDA UNII
0 T18YH28D · M0T18YH28D
ATC code
8 AK04 · D08AK04
EPA Substance Registry System
Mercury, (2',7'-dibromo-3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-4'-yl)hydroxy-, disodium salt (129-16-8)
UNSPSC Code
12352200 · 12352200
NACRES
32 · NA.32
Symbol(GHS)
6 · GHS06,GHS08,GHS09
Signal word
Danger
Hazard statements
300 · H300+H310+H330-H373-H410
Precautionary statements
262 · P262-P273-P280-P302+P352+P310-P304+P340+P310-P314
PPE
3 · Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Codes
T+,N
Risk Statements
26 · 26/27/28-33-50/53
Safety Statements
13 · 13-28-36-45-60-61
RIDADR
2025 · UN 2025 6.1/PG 2
WGK Germany
3 · 3
RTECS
5250000 · LM5250000
HazardClass
6.1 · 6.1(a)
PackingGroup
II
Storage Class
6.1 A · 6.1A - Combustible acute toxic Cat. 1 and 2very toxic hazardous materials
Hazard Classifications
1 DermalAcute · Acute Tox. 1 DermalAcute Tox. 2 InhalationAcute Tox. 2 OralAquatic Acute 1Aquatic Chronic 1STOT RE 2
Hazardous Substances Data
129 · 129-16-8(Hazardous Substances Data)
Toxicity
50 · mouse,LD50,intravenous,50mg/kg (50mg/kg),Journal of Pharmacology and Experimental Therapeutics. Vol. 43, Pg. 645, 1931.
REACH Registrations
Inactive

High-affinity binding of the divalent mercuric ion to thiol or sulfhydryl groups of proteins is believed to be the major mechanism for the activity of mercury. Through alterations in intracellular thiol status, mercury can promote oxidative stress, lipid peroxidation, mitochondrial dysfunction, and changes in heme metabolism. Mercury is known to bind to microsomal and mitochondrial enzymes, resulting in cell injury and death. For example, mercury is known to inhibit aquaporins, halting water flow across the cell membrane. It also inhibits the protein LCK, which causes decreased T-cell signalling and immune system depression. Mercury is also believed to inhibit neuronal excitability by acting on the postsynaptic neuronal membrane. It also affects the nervous system by inhibiting protein kinase C and alkaline phosphatase, which impairs brain microvascular formation and function, as well as alters the blood-brain barrier. Organic mercury exerts developmental effects by binding to tubulin, preventing microtubule assembly and causing mitotic inhibition. Mercury also produces an autoimmune response, likely by modification of major histocompatibility complex (MHC) class II molecules, self peptides, T-cell receptors, or cell-surface adhesion molecules. Bromine is a powerful oxidizing agent and is able to release oxygen free radicals from the water in mucous membranes. These free radicals are also potent oxidizers and produce tissue damage. In additon, the formation of hydrobromic and bromic acids will result in secondary irritation. The bromide ion is also known to affect the central nervous system, causing bromism. This is believed to be a result of bromide ions substituting for chloride ions in the in actions of neurotransmitters and transport systems, thus affecting numerous synaptic processes. (L626, L627, A543, L7, A8, A25, A26)

Signs and Symptoms · 1 item

Common symptoms include peripheral neuropathy (presenting as paresthesia or itching, burning or pain), skin discoloration (pink cheeks, fingertips and toes), edema (swelling), and desquamation (dead skin peels off in layers). Bromine vapour causes irritation and direct damage to the mucous membranes. Symptoms include lacrimation, rhinorrhoea, eye irritation with mucous secretions from the oropharyngeal and upper airways, coughing, dyspnoea, choking, wheezing, epistaxis, and headache. The bromide ion is a central nervous system depressant producing ataxia, slurred speech, tremor, nausea, vomiting, lethargy, dizziness, visual disturbances, unsteadiness, headaches, impaired memory and concentration, disorientation and hallucinations. This is called bromism. (L626, L627, A5)

Carcinogen ClassificationNo indication of carcinogenicity (not listed by IARC). (L135)
Toxicity DataLD50: 50 mg/kg (Intravenous, Mouse) (L330)

Safety data

PPE
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
wgk
3
rtecs
LM5250000
ridadr
UN 2025 6.1/PG 2
Toxicity
mouse,LD50,intravenous,50mg/kg (50mg/kg),Journal of Pharmacology and Experimental Therapeutics. Vol. 43, Pg. 645, 1931.
risk_code
26/27/28-33-50/53
Signal word
Danger
Symbol(GHS)
GHS06,GHS08,GHS09
hazard_code
T+,N
safety_code
13-28-36-45-60-61
hazard_class
6.1(a)
Storage Class
6.1A - Combustible acute toxic Cat. 1 and 2very toxic hazardous materials
packing_group
II
Hazard statements
H300+H310+H330-H373-H410
REACH Registrations
Inactive
Hazard Classifications
Acute Tox. 1 DermalAcute Tox. 2 InhalationAcute Tox. 2 OralAquatic Acute 1Aquatic Chronic 1STOT RE 2
Precautionary statements
P262-P273-P280-P302+P352+P310-P304+P340+P310-P314
Hazardous Substances Data
129-16-8(Hazardous Substances Data)