N,N'-Bis(phenylmethyl)-1,2-ethanediamine
- Product Name
- N,N'-Bis(phenylmethyl)-1,2-ethanediamine
- CAS No.
- 140-28-3
- Chemical Name
- N,N'-Bis(phenylmethyl)-1,2-ethanediamine
- Synonyms
- Dbed;BENZATHINE;N1,N2-Dibenzylethane-1,2-diaMine;Benzatin;Nsc5632;usafdo-53;USAF do-53;N,N'-DibenzyL;BENZATHINE 99%;enediamine Diacetate SaL
- CBNumber
- CB6214137
- Molecular Formula
- C16H20N2
- Formula Weight
- 240.34
- MOL File
- 140-28-3.mol
N,N'-Bis(phenylmethyl)-1,2-ethanediamine Property
- Melting point:
- 23-25°C
- Boiling point:
- 195 °C4 mm Hg(lit.)
- Density
- 1.02 g/mL at 25 °C(lit.)
- refractive index
- n20/D 1.565(lit.)
- Flash point:
- >230 °F
- storage temp.
- Room Temperature
- solubility
- Chloroform (Slightly), Ethyl Acetate (Slightly), Water (Slightly)
- form
- Solid
- pka
- 9.15±0.19(Predicted)
- Specific Gravity
- 1.025
- color
- White to Off-White
- Water Solubility
- Slightly soluble in water.
- FreezingPoint
- 21.0 to 25.0 ℃
- Sensitive
- Air Sensitive
- Merck
- 14,1064
- BRN
- 786668
- CAS DataBase Reference
- 140-28-3(CAS DataBase Reference)
- NIST Chemistry Reference
- 1,2-Ethanediamine, N,N'-bis(phenylmethyl)-(140-28-3)
- EPA Substance Registry System
- 1,2-Ethanediamine, N,N'-bis(phenylmethyl)- (140-28-3)
Safety
- Hazard Codes
- Xn
- Risk Statements
- 22-36/37/38
- Safety Statements
- 26
- RIDADR
- 2927
- WGK Germany
- 3
- RTECS
- KV3325000
- TSCA
- Yes
- HazardClass
- 8
- PackingGroup
- III
- HS Code
- 29215990
- Toxicity
- LD50 orl-mus: 388 mg/kg CNCRA6 52,579,68
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
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.
N-Bromosuccinimide Price
- Product number
- D35201
- Product name
- N,N′-Dibenzylethylenediamine
- Purity
- 97%
- Packaging
- 25g
- Price
- $94.9
- Updated
- 2024/03/01
- Product number
- D35201
- Product name
- N,N′-Dibenzylethylenediamine
- Purity
- 97%
- Packaging
- 100g
- Price
- $217
- Updated
- 2024/03/01
- Product number
- D1807
- Product name
- N,N'-Dibenzylethylenediamine
- Purity
- >98.0%(GC)(T)
- Packaging
- 25mL
- Price
- $94
- Updated
- 2024/03/01
- Product number
- D1807
- Product name
- N,N'-Dibenzylethylenediamine
- Purity
- >98.0%(GC)(T)
- Packaging
- 500mL
- Price
- $906
- Updated
- 2024/03/01
- Product number
- L03540
- Product name
- N,N'-Dibenzylethylenediamine, 97%
- Packaging
- 25g
- Price
- $73.65
- Updated
- 2024/03/01
N,N'-Bis(phenylmethyl)-1,2-ethanediamine Chemical Properties,Usage,Production
Chemical Properties
light yellow liquid
Uses
N,N'-Dibenzylethylenediamine is an intermediate of cephalosporin and penicillin.
Definition
ChEBI: Benzathine is a diamine. It is a conjugate base of a benzathine(1+).
Synthesis Reference(s)
The Journal of Organic Chemistry, 55, p. 3209, 1990 DOI: 10.1021/jo00297a042
Safety Profile
Poison by ingestion,intraperitoneal, and parenteral routes. When heated todecomposition it emits toxic vapors of NOx.
Purification Methods
Dissolve DBED in acid, extract with toluene, basify, extract it with Et2O, dry over solid KOH, evaporate and fractionate it in vacuo. The diacetate crystallises from H2O by addition of EtOH and has m 111o (solubility in H2O is ~25%). The dihydrochloride has m 306-308o (from H2O) and the dipicrate has m 212o(dec) (from H2O). [Frost et al., J Am Chem Soc 71 3842 1949, Beilstein 12 H 1067, 12 III 2304.]
N,N'-Bis(phenylmethyl)-1,2-ethanediamine Preparation Products And Raw materials
Raw materials
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View Lastest Price from N,N'-Bis(phenylmethyl)-1,2-ethanediamine manufacturers
- Product
- N,N'-Bis(phenylmethyl)-1,2-ethanediamine 140-28-3
- Price
- US $3.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 1kg , 5kg, 50kg
- Release date
- 2020-01-17