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
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)
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
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.
N-Bromosuccinimide Price
- Product number
- B81255
- Product name
- N-Bromosuccinimide
- Purity
- 99%
- Packaging
- 5g
- Price
- $31.2
- Updated
- 2024/03/01
- Product number
- B81255
- Product name
- N-Bromosuccinimide
- Purity
- 99%
- Packaging
- 1kg
- Price
- $157
- Updated
- 2024/03/01
- Product number
- SAB4501957
- Product name
- Anti-p95 antibody produced in rabbit
- Purity
- affinity isolated antibody
- Packaging
- 100μG
- Price
- $506
- Updated
- 2024/03/01
- Product number
- 8.01949
- Product name
- N-Bromosuccinimide
- Purity
- for synthesis
- Packaging
- 5G
- Price
- $42
- Updated
- 2024/03/01
- Product number
- 8.01949
- Product name
- N-Bromosuccinimide
- Purity
- for synthesis
- Packaging
- 250g
- Price
- $86
- Updated
- 2024/03/01
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
Preparation Products
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View Lastest Price from N-Bromosuccinimide manufacturers
- Product
- N-Bromosuccinimide 128-08-5
- Price
- US $7890.00-7870.00/Metric tonnes
- Min. Order
- 1Metric tonnes
- Purity
- 99%
- Supply Ability
- 1000tons
- Release date
- 2023-02-14
- Product
- N-Bromosuccinimide 128-08-5
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 2000mt
- Release date
- 2022-10-10
- Product
- N-Bromosuccinimide 128-08-5
- Price
- US $6.00/KG
- Min. Order
- 1KG
- Purity
- More than 99%
- Supply Ability
- 2000KG/MONTH
- Release date
- 2024-04-23