ChemicalBook > CAS DataBase List > N-Bromosuccinimide

N-Bromosuccinimide

Product Name
N-Bromosuccinimide
CAS No.
128-08-5
Chemical Name
N-Bromosuccinimide
Synonyms
NBS;bromosuccinimide;N-BROMOSUCINIMIDE;1-BROMO-2,5-PYRROLIDINEDIONE;N-Brom-succinimid;N-Bromsuccinimid;N-BROMOBUTANIMIDE;N-Bromsuccinimide;N-Bromosucciminide;1-Bromo-2,5-phrrolidinedione
CBNumber
CB2234049
Molecular Formula
C4H4BrNO2
Formula Weight
177.98
MOL File
128-08-5.mol
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N-Bromosuccinimide Property

Melting point:
175-180 °C (dec.)(lit.)
Boiling point:
221.4°C (rough estimate)
Density 
2.098
vapor pressure 
14.8 hPa (20 °C)
refractive index 
1.6060 (estimate)
storage temp. 
Store at +2°C to +8°C.
solubility 
14.8g/l (decomposition)
form 
Crystalline Powder
pka
-2.78±0.20(Predicted)
color 
White to light yellow
Odor
characteristic odour of bromine
Water Solubility 
Soluble in acetone, tetrahydrofuran, dimethyl formamide, dimethyl sulfoxide and acetonitrile. Slightly soluble in water and acetic acid. Insoluble in ether, hexane and carbon tetrachloride.
Sensitive 
Moisture Sensitive
Merck 
14,1438
BRN 
113916
Stability:
Stable. Incompatible with strong oxidizing agents, halogenated hydrocarbons.
InChIKey
PCLIMKBDDGJMGD-UHFFFAOYSA-N
LogP
-1.19
CAS DataBase Reference
128-08-5(CAS DataBase Reference)
NIST Chemistry Reference
2,5-Pyrrolidinedione, 1-bromo-(128-08-5)
EPA Substance Registry System
N-Bromosuccinimide (128-08-5)
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Safety

Hazard Codes 
C,Xn
Risk Statements 
22-34-36/37/38
Safety Statements 
26-36/37/39-45-37/39
RIDADR 
UN 3261 8/PG 2
WGK Germany 
3
Hazard Note 
Harmful
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
29251995
Hazardous Substances Data
128-08-5(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: > 2000 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H272May intensify fire; oxidizer

H290May be corrosive to metals

H315Causes skin irritation

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H341Suspected of causing genetic defects

H400Very toxic to aquatic life

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P308+P313IF exposed or concerned: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
B81255
Product name
N-Bromosuccinimide
Purity
99%
Packaging
5g
Price
$31.2
Updated
2024/03/01
Sigma-Aldrich
Product number
B81255
Product name
N-Bromosuccinimide
Purity
99%
Packaging
1kg
Price
$157
Updated
2024/03/01
Sigma-Aldrich
Product number
SAB4501957
Product name
Anti-p95 antibody produced in rabbit
Purity
affinity isolated antibody
Packaging
100μG
Price
$506
Updated
2024/03/01
Sigma-Aldrich
Product number
8.01949
Product name
N-Bromosuccinimide
Purity
for synthesis
Packaging
5G
Price
$42
Updated
2024/03/01
Sigma-Aldrich
Product number
8.01949
Product name
N-Bromosuccinimide
Purity
for synthesis
Packaging
250g
Price
$86
Updated
2024/03/01
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N-Bromosuccinimide Chemical Properties,Usage,Production

Chemical Properties

white to light yellow crystalline powder

Uses

N-Bromosuccinimide is a brominated succinimide used as a chemical reagent in radical substitution and electrophilic addition reactions in organic synthesis. In bromination of olefins; in oxidation of alcohols to aldehydes and ketones and of aldehydes to acid bromides.

Definition

ChEBI: N-bromosuccinimide is a five-membered cyclic dicarboximide compound having a bromo substituent on the nitrogen atom. It has a role as a reagent. It is a dicarboximide, a pyrrolidinone and an organobromine compound. It is functionally related to a succinimide.

Preparation

N-Bromosuccinimide is prepared by addition of bromine to a cold aqueous solution of succinimide or by reaction of succinimide with NaBrO2 in the presence of HBr.

1.62mol (160g) succinimide is dissolved in a mixture of 1.60mol (64g) NaOH, 300g crushed ice and 400ml water. Cool the mixture in an ice bath, and add 85ml (1.65 mol, 264g) Br2 at once while stirring violently. Stir for two more minutes, then filter the precipitated product and wash with ice water. Dry in a desiccator. Yield 75-81%.
Don't clean up NBS too much, the stinky yellow stuff still containing a bit of Br2 works best. N-Bromosuccinimide is a brominating agent that replaces hydrogen atoms in benzylic or allylic positions. It is used in the oxidation of secondary alcohols to ketones and in controlled low-energy brominations.

Flammability and Explosibility

Non flammable

Safety Profile

Poison by intraperitoneal route. An irritating poison to skin, eyes, and mucous membranes. Reacts explosively with adme, dtallyl sulfide, and hydrazine hydrate. Explosive reaction with propiononitrile after heating to 105℃ for 24 hours. Violent reaction with dtbenzoyl peroxide + 4-tok acid. When heated to decomposition it emits toxic fumes of Brand NOx. See also BROMIDES and NITROGEN MONOXIDE.

Purification Methods

N-Bromosuccinimide (30g) is purified by dissolving rapidly in 300mL of boiling water and filtering through a fluted filter paper into a flask immersed in an ice bath, and left for 2hours. The crystals are filtered off, washed thoroughly with ca 100mL of ice-cold water and drained on a Büchner funnel before drying under vacuun over P2O5 or CaCl2 [Dauben & McCoy J Am Chem Soc 81 4863 1959]. This brominating agent has also been crystallised from acetic acid or water (10 parts), washed in water and dried in vacuo [Wilcox et al. J Am Chem Soc 108 7693 1986, Shell et al. J Am Chem Soc 108 121 1986, Phillips & Cohen J Am Chem Soc 108 2013 1986, Beilstein 21/9 V 543.]

N-Bromosuccinimide Preparation Products And Raw materials

Raw materials

Succinimide Succinic acid

Preparation Products

5-Bromo-4-chloro-7H-pyrrolo[2,3-d]pyrimidine 5-Bromo-2-oxindole BISPYRAZOLONE 2-Amino-5-bromopyrazine Raltitrexed METHYL 3-((PYRROLIDIN-1-YL)METHYL)BENZOATE 4-CHLORO-3-((CYCLOPROPYLAMINO)METHYL)BENZALDEHYDE 3-BROMO-1-(TRIISOPROPYLSILYL)INDOLE 5-BROMO-2-CHLORO-4,6-DIMETHYLNICOTINONITRILE 2,6-Dibromopyridin-3-amine 5-BROMO-6-HYDROXY-1H-PYRIMIDINE-2,4-DIONE Ethyl 4-bromocrotonate 5-Bromo-4-chloro-2-(methylthio)-7H-pyrrolo[2,3-D]pyrimidine ,97% 2-Hydroxy-5-bromopyridine 3-Nitrobenzyl bromide 2,1,3-BENZOTHIADIAZOL-4-YLMETHANOL,97% 2-NAPHTHALEN-1-YL-ETHYLAMINE METHYL 4-(BROMOMETHYL)-3-METHOXYBENZOATE 5-BROMO-2-(PIPERIDIN-1-YL)PYRIMIDINE Methyl 3-(morpholinomethyl)benzoate ,98% 2-(Bromomethyl)pyridine hydrobromide 6-BROMOMETHYL-2-PYRIDINECARBOXYLIC ACID alpha,alpha'-Dibromo-p-xylene METHYL ALPHA-BROMOPHENYLACETATE IMIDAZO[1,2-A]PYRIDINE-2-CARBOXYLIC ACID Methyl 2-bromomethylbenzoate Bromoacetonitrile 4-Pyrazolecarboxylic acid 4-AMINO-N,N-DIMETHYLBENZYLAMINE 8-BROMO-4-CHLORO-2-METHYLTHIOPYRAZOLO[1,5-A]1,3,5-TRIAZINE 1-(BROMOMETHYL)-4-(METHYLSULFONYL)BENZENE 4-Bromo-2-methoxyphenol 3-(BROMOMETHYL)BENZOIC ACID 3-BROMO-5-(TRIFLUOROMETHYL)BENZENESULFONYL CHLORIDE DIETHYL 2-(ACETAMIDO)-2-(2-(BROMOMETHYL)-5-NITROBENZYL)MALONATE 4-BROMO-5-METHYL-1H-PYRAZOLE-3-CARBOXYLIC ACID IMIDAZO[1,2-A]PYRIDINE-2-CARBOXYLIC ACID ETHYL ESTER 5-BROMO-4,6-DIMETHOXYPYRIMIDINE 2,5-DICHLOROTHIOPHENE-3-CARBOXYLIC ACID 5-BROMO-2-(MORPHOLIN-4-YL)PYRIMIDINE
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View Lastest Price from N-Bromosuccinimide manufacturers

HebeiShuoshengImportandExportco.,Ltd
Product
N-Bromosuccinimide 128-08-5
Price
US $6.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
2000KG/Month
Release date
2024-08-05
Hebei Longbang Technology Co., Ltd
Product
N-Bromosuccinimide 128-08-5
Price
US $6.00/kg
Min. Order
1kg
Purity
More than 99%
Supply Ability
2000KG/Month
Release date
2024-05-24
Jinan Finer Chemical Co., Ltd
Product
N-Bromosuccinimide 128-08-5
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
2000mt
Release date
2022-10-10

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