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2,2',7,7'-Tetrabromo-9,9'-spirobifluorene

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene structure

CAS No:
128055-74-3
Formula:
C25H12Br4
Chemical Name:
2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
Synonyms:
2,2',7,7'-TETRABROMO-9,9'-SPIROBIFLUORENE;2,2'',7,7''-TETRABROMO-9,9''-SPIRO-BIFLUOROENE;2,2'',7,7''-TETRABROMO-9,9''-SPIROBI[9H-FLUORENE];2,2',7,7'-Tetrabromo-9,9'-spirobiflurene;2,2',7,7'-Tetrabromo;2,2',7,7'-TetrabroMo-9,9'-Spirobifluorene,TetrabroMo-9,9'-Spirobifluorene;9,9'-Spirobi[9H-fluorene], 2,2',7,7'-tetrabroMo-2,2',7,7'-TetrabroMo-9,9'-spirobi[9H-fluorene];TetrabroMo-9,9'-spirobifl
Categories:
Pharmaceutical Intermediates > Oled Material Intermediate

Description

White to light yellow powder.Pharmaceutical intermediates are also important intermediates for the synthesis of optoelectronic materials

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene Basic Attributes

Molecular Weight：

631.98

Exact Mass：

683.237366

EC Number：

1312995-182-4

NSC Number：

645359

DSSTox ID：

DTXSID90327314

HScode：

29039990

Characteristics

PSA：

XLogP3：

9.1

Appearance：

off-white crystal

Density：

2.12±0.1 g/cm3(Predicted)

Melting Point：

395-400°C

Boiling Point：

633.7±55.0 °C(Predicted)

Flash Point：

322.5ºC

Refractive Index：

1.843

Vapor Pressure：

2.83E-15mmHg at 25°C

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

22-36

safety instructions：

Marks：

Precautionary statement(s)：

P305 + P351 + P338

Hazard Statements：

H302-H319

GHS Classification：

|Warning|H302 (97.44%): Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P280, P301+P312, P305+P351+P338, P330, P337+P313, and P501|Aggregated GHS information provided by 39 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene Use and Manufacturing

Methods of Manufacturing

d 2, 2', 7, 7'-Tetrabromo-9, 9'-spirobifluorene was prepared as follows. 3) Synthesis of a compound 3 The compound 2 (10.6 mmol, 5 g) was dissolved in 150 ml of chloroform and cooled to 0°C, bromine (21.19 mmol, 3.39 g) was slowly dropped thereon, and agitation was conducted for 3 hours. After the reaction, 50 ml of 2 M potassium hydroxide was injected into the reaction vessel to bring about neutralization. The reactants were then washed three times using distilled water. Next, an organic layer was separated and subjected to vacuum distillation, and the resulting solid was recrystallized using a mixed solution of chloroform and ethanol to produce a compound 3 (9.01 mmol, 5.65 g) (Yield 85 percent).

Uses

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene is used in the preparation of OLEDs using amorphous compounds with spiro-bifluorene core.

Computed Properties

Molecular Weight:632.0
XLogP3:9.1
Exact Mass:631.76315
Monoisotopic Mass:627.76725
Heavy Atom Count:29
Complexity:527
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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Guide of 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene

Description
Basic Attributes
Characteristics
Safety Information
Use and Manufacturing
Computed Properties
Recommended Suppliers
Latest News
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2,2',7,7'-Tetrabromo-9,9'-spirobifluorene

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