| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Email: |
saleschina@alfa-asia.com |
| Company Name: |
Energy Chemical |
| Tel: |
400-0056266 |
| Email: |
sales8178@energy-chemical.com |
Benzoyl isocyanate manufacturers
- Benzoyl isocyanate
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- $1.00
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2020-01-10
- CAS:4461-33-0
- Min. Order: 1KG
- Purity: 98%
- Supply Ability: 200KG
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| | Benzoyl isocyanate Basic information |
| | Benzoyl isocyanate Chemical Properties |
| Melting point | 25.9°C | | Boiling point | 94-96 °C21 mm Hg(lit.) | | density | 1.171 g/mL at 25 °C(lit.) | | refractive index | n20/D 1.5514(lit.) | | Fp | 162 °F | | storage temp. | -20°C | | form | Solid | | color | Clear to hazy colorlessor white | | Sensitive | Moisture Sensitive | | BRN | 878595 | | InChI | 1S/C8H5NO2/c10-6-9-8(11)7-4-2-1-3-5-7/h1-5H | | InChIKey | LURYMYITPCOQAU-UHFFFAOYSA-N | | SMILES | O=C=NC(=O)c1ccccc1 | | CAS DataBase Reference | 4461-33-0 |
| Hazard Codes | Xn | | Risk Statements | 20/21/22-36/37/38 | | Safety Statements | 26-27-28-36/37/39 | | RIDADR | UN 2206 6.1/PG 3 | | WGK Germany | 3 | | HazardClass | 6.1 | | PackingGroup | II | | HS Code | 29291000 | | Storage Class | 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects | | Hazard Classifications | Acute Tox. 4 Dermal
Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Eye Irrit. 2
Resp. Sens. 1
Skin Irrit. 2
Skin Sens. 1
STOT SE 3 |
| | Benzoyl isocyanate Usage And Synthesis |
| Chemical Properties | clear colourless liquid | | Uses | Benzoyl isocyanate was used as a capping reagent for low-reactivity hydroxy groups in the solid-phase-supported oligosaccharide synthesis. | | General Description | The reaction mechanism of benzoyl isocyanate with 6-benzyl-6-azabicyclo[2.2.1]hept-2-ene was studied. | | Synthesis | In a four-necked flask equipped with a mechanical stirrer, thermometer, constant-pressure dropping funnel, and reflux condenser tube, 2.97 g of bis(trichloromethyl)carbonate and 20 ml of ethyl acetate were mixed and stirred at -5~5 C. 7.27g of benzamide was dissolved in a solution of 30ml of ethyl acetate via a constant pressure dropping funnel and slowly added dropwise to the above solution, the dropping process was at a low temperature stage of -5~5C. After adding, stirring for 30 minutes, slowly warming up to a high temperature stage of 75~80C, and dropwise adding 2.97g of bis(trichloromethyl)carbonate dissolved in a solution of 20ml of ethyl acetate at this reaction temperature, 3~3.5 hours to add, add and continue to react at this temperature for 2 hours, recovering the ethyl acetate at the end of the reaction, and then obtaining 7.93g of benzoyl isocyanate after decompression distillation, with a yield of 89.89%. |
| | Benzoyl isocyanate Preparation Products And Raw materials |
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