Quality N-Bromosuccinimide CAS NO.128-08-5 High purity 99% CAS 128-08-5 with General Bromination Reagent N-Bromosuccinimide CAS NO.128-08-5

Superiority

Product Name: N-Bromosuccinimide
Synonyms: 1-Bromo-2,5-pyrrolidinedione, NBS, N-bromobutanimide, N-бромбутанимид;2,5-PYRROLIDINEDIONE, 1-BROMO-;1-BROMO-2,5-PYRROLIDINEDIONE;AKOS BBS-00004413;bromosuccinimide;BROMOSUCCINIMIDE-N;SUCCINIMIDE, N-BROMO-;SUCCINBROMIDE
CAS: 128-08-5
MF: C4H4BrNO2
MW: 177.98
EINECS: 204-877-2
Product Categories: Nitrogen cyclic compounds;Medical Intermediates;Biochemistry;Bromination;Halogenation;N-Substituted Maleimides, Succinimides & Phthalimides;N-Substituted Succinimides;Reagents for Oligosaccharide Synthesis;Synthetic Organic Chemistry
Mol File: 128-08-5.mol

N-Bromosuccinimide Chemical Properties
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.  0-6°C
solubility  14.8g/l (decomposition)
pka -2.78±0.20(Predicted)
form  Crystalline Powder
color  White to light yellow
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
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 Information
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
Toxicity LD50 orally in Rabbit: > 2000 mg/kg

N-Bromosuccinimide Usage And Synthesis
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.
Uses NBS, is a chemical reagent used in organic chemistry in electrophilic addition reactions and radical substitution
Uses In bromination of olefins; in oxidation of alcohols to aldehydes and ketones and of aldehydes to acid bromides.
Definition ChEBI: A five-membered cyclic dicarboximide compound having a bromo substituent on the nitrogen atom.
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.

 

SPECIFICATION   PROPERTIES	STANDARD	RESULTS
content	>98%	99%
water	<0.05%	0.003%
Appearance	White crystalline powder	White crystalline powder
Ash (%)	<0.1%	0.01
Loss on drying(%)	<0.5%	0.1

 

Item	Value
Product name	N-Bromosuccinimide
CAS	128-08-5
Other name	NBS
Appearance	White powder
Purity	99%min
MF	C4H4BrNO2
Usage	Chemical additives
Place of origin	China
Sample	Yes
Shelf life	2years
Melting point	175-180 °C (dec.)(lit.)
Boiling point	221.4°C (rough estimate)
D ensity	2.098
V apor pressure	14.8 hPa (20 °C)
R efractive index	1.6060 (estimate)
S torage temp.	Store at +2°C to +8°C.
S olubility	14.8g/l (decomposition)
P ka	-2.78±0.20(Predicted)
F orm	Crystalline Powder

 

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Identification reagent	Used as an identification reagent for primary, secondary and tertiary alcohols.
Organic synthetic raw material	It is widely used in the negative ion bromine reaction and free radical bromine reaction of olefins, alkynes and other compounds. It is used to regulate low-energy bromination reactions, in the commercial production of rubber auxiliaries and pharmaceutical products such as cortisone and vitamin D3, and in the synthesis of thiamidam in the pesticide industry.
Preservative	Used as fruit preservative and anti-corrosion, anti-mildew agent, etc.
Important brominating agent	It can be used for allyl bromination (Wohl-Ziegler reaction) as a selective brominator for alkenes and alkyl aromatics. In the pharmaceutical industry, it is often used as a brominating agent in antibiotic synthesis, such as the synthesis of benzyl cephalosporin (Cefaloram).
Important oxidant	In organic synthesis, ethanol is oxidized into aldehydes and ketones, and aldehydes are oxidized into brominated acids. In the presence of AIBN, silicyl ether can be oxidized to aldehyde. It is used for the oxidation of tryptophan, but the degree of oxidation of tyrosine, histidine and methionine residues may be low.
Tryptophan modification agent	It can also be used for the modification of ribosome sulfhydryl groups.
Universal bromination reagent	For the oxidation of tryptophan, although tyrosine, histidine, methionine oxidation residues may be present to a lesser extent; Group modification of ribosome sulfhydryl groups.
Ascorbic acid determination	It is used to determine ascorbic acid in pharmaceutical preparations, biological fluids and vegetables and fruits.

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