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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 619909Generated: October 23, 2026

2,2'-Dibromo-1,1'-binaphthyl

2,2'-Dibromo-1,1'-binaphthalene · SKL192 · JACS-74866-28-7 · Binaphthalene dibromide · 2,2'-diboromo-binaphthyl · 2,2`-DibroMo-1,1`-Binaphtyl · 1,1'-Bi(2-bromonaphthalene) · 2,2'-Dibromo-1,1'-binapthyl

https://huagongshe.com/en/chemical/619909

2,2'-Dibromo-1,1'-binaphthyl molecular structure

Identifiers & Physical Properties

CAS No.74866-28-7
Molecular formulaC20H12Br2
Average molar mass412.1 g/mol
Monoisotopic mass409.93058 g/mol
SMILESBrc1ccc2ccccc2c1-c1c(Br)ccc2ccccc12
InChIKeyIJUDEFZBMMRSNM-UHFFFAOYSA-N
PubChem CID619909
EC No.626-733-1
DTXSIDDTXSID60347302

Chemical & Physical Properties

XLogP7.4
Topological polar surface area0
Hydrogen bond donors0
Hydrogen bond acceptors0
Rotatable bonds1
Heavy atoms22
Formal charge0
Complexity346
Melting point178-183 °C
Boiling point178-183°C
Density1.614±0.06 g/cm3(Predicted)
Flash point178-183°C
Storage conditionsSealed in dry,Room Temperature
Solubilitysoluble in TolueneSparingly Soluble in water.
Physical statePowder
Colorwhite to off-white
InChI1S/C20H12Br2/c21-17-11-9-13-5-1-3-7-15(13)19(17)20-16-8-4-2-6-14(16)10-12-18(20)22/h1-12H
InChIKeyIJUDEFZBMMRSNM-UHFFFAOYSA-N
SMILESBrc1ccc2ccccc2c1-c3c(Br)ccc4ccccc34
CAS DataBase Reference74866-28-7(CAS DataBase Reference)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH302-H413
GHS precautionary statementsP273-P301+P312+P330
Personal protective equipment (PPE)dust mask type N95 (US), Eyeshields, Gloves
Hazard symbolsXn
Risk statements (R)36/37/38-22
Safety statements (S)26-36/37/39
Water hazard class (WGK)3
Customs code2903.99.8001
Storage class11 - Combustible Solids
Hazard classAcute Tox. 4 OralAquatic Chronic 4

Safety & Regulations

GHS classificationWarningH302 (88.6%): Harmful if swallowed [Warning Acute toxicity, oral]H315 (11.4%): Causes skin irritation [Warning Skin corrosion/irritation]H319 (11.4%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H413 (88.6%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard]P264, P264+P265, P270, P273, P280, P301+P317, P302+P352, P305+P351+P338, P321, P330, P332+P317, P337+P317, P362+P364, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 44 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Hazard Classes and CategoriesAcute Tox. 4 (88.6%)Skin Irrit. 2 (11.4%)Eye Irrit. 2 (11.4%)Aquatic Chronic 4 (88.6%)
Personal protective equipment (PPE)dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK)3
Customs code2903.99.8001
Risk statements (R)36/37/38-22
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXn
Safety statements (S)26-36/37/39
Storage class11 - Combustible Solids
GHS hazard statementsH302-H413
Hazard classAcute Tox. 4 OralAquatic Chronic 4
GHS precautionary statementsP273-P301+P312+P330

Applications & Uses

Uses

The synthesis of this class of compounds relies on the lithiation of racemic 2,2'-dibromo-1,1'-binaphthyl with t-BuLi followed by addition of Ph 2 PCl.