| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Email: |
saleschina@alfa-asia.com |
- Benzathine
-
- $1980.00
-
2026-07-15
- CAS:140-28-3
- Purity:
- Supply Ability: 10g
|
| | N,N'-Bis(phenylmethyl)-1,2-ethanediamine Basic information |
| Product Name: | N,N'-Bis(phenylmethyl)-1,2-ethanediamine | | Synonyms: | N'N-DIBENZYL-ETHYLENEDIAMINE;1,2-di(benzylamino)ethane;Benzathine~1,2-Bis(benzylamino)ethane;N,N`-dibenzylethylendiamine;BENZATHINE 99%;1 2-BIS(BENZYLAMINO)ETHANE 99%;1,2-ETHANEDIAMINE,N,N''-BIS(PHENYLMETHYL)-;N,N'-Bis(phenylmethyl)ethane-1,2-diamine | | CAS: | 140-28-3 | | MF: | C16H20N2 | | MW: | 240.34 | | EINECS: | 205-408-4 | | Product Categories: | Nitrogen Compounds;Organic Building Blocks;Polyamines | | Mol File: | 140-28-3.mol |  |
| | N,N'-Bis(phenylmethyl)-1,2-ethanediamine Chemical Properties |
| 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.) | | Fp | >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 | | InChI | 1S/C16H20N2/c1-3-7-15(8-4-1)13-17-11-12-18-14-16-9-5-2-6-10-16/h1-10,17-18H,11-14H2 | | InChIKey | JUHORIMYRDESRB-UHFFFAOYSA-N | | SMILES | C(CNCc1ccccc1)NCc2ccccc2 | | 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) |
| Hazard Codes | Xn | | Risk Statements | 22-36/37/38 | | Safety Statements | 26 | | RIDADR | 2927 | | WGK Germany | 3 | | RTECS | KV3325000 | | TSCA | TSCA listed | | HazardClass | 8 | | PackingGroup | III | | HS Code | 29215990 | | Storage Class | 10 - Combustible liquids | | Hazard Classifications | Acute Tox. 4 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 | | Toxicity | LD50 orl-mus: 388 mg/kg CNCRA6 52,579,68 |
| | N,N'-Bis(phenylmethyl)-1,2-ethanediamine Usage And Synthesis |
| 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 |
|