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| CAS No.: | 10416-59-8 |
|---|---|
| Name: | N,O-Bis(trimethylsilyl)acetamide |
| Article Data: | 7 |
| Molecular Structure: | |
|
|
|
| Formula: | C8H21NOSi2 |
| Molecular Weight: | 203.432 |
| Synonyms: | Ethanimidic acid, N-(trimethylsilyl)-, trimethylsilyl ester;N-trimethylsilyl-1-trimethylsilyloxy-ethanimine;N-(Trimethylsilyl)acetimidic acid, trimethylsilyl ester;Trimethylsilyl N-trimethylsilylacetamidate;N,O-Bis(trimethylsilyl);N,O-Bis(trimethylsily)acetamide;N, O-Bis(trimethylsilyl)acetamide;N,O-Bis (Trimethylsilyl)acetamide;N.O-Bis(trimethylsilyl)acetamide;N,O-Bis-(trimethylsilyl)-acetamide;N,O-Bisltrimethylsilyl;N, O-Bis (Trimethylsilyl) Acetamide;N,O-Bis (Trimethylsilyl) Acetamide;N,O-bis-(Trimethylsilyl)acetamide;N,O-Bis-(trimethylsilyl)-acetamide(BSA);Bis trimethyl silyl acetamide; |
| EINECS: | 233-892-7 |
| Density: | 0.83 g/cm3 |
| Melting Point: | 24 °C |
| Boiling Point: | 162.1 °C at 760 mmHg |
| Flash Point: | 65.5 °C |
| Appearance: | Clear to yellowish clear liquid |
| Hazard Symbols: |
 C
|
| Risk Codes: | 10-14-22-34-40-20/21/22-11 |
| Safety: | 26-36/37/39-45-7/8-43A-36-30-23-16-7/9 |
| Transport Information: | UN 2920 8/PG 2 |
| PSA: | 21.59000 |
| LogP: | 3.09120 |
1-(Trimethylsilyl)imidazole
N-Trimethylsilylacetamide
N,O-bis-(trimethylsilyl)-acetamide
| Conditions | Yield |
|---|---|
| at 175℃; under 75.0075 - 146.265 Torr; 30-theoretical-plates distillation column of Old-ershaw type; | 79.3% |
| at 150 - 180℃; under 78.7579 - 150.015 Torr; 20-theoretical-plates distillation column of Old-ershaw type; | 198.6 g |
| at 100 - 121℃; under 11.2511 Torr; 30-theoretical-plates distillation column of Old-ershaw type; | 118.9 g |
| at 130 - 162℃; under 75.0075 Torr; 20-theoretical-plates distillation column of Old-ershaw type; | 154.2 g |
| at 175℃; under 71.2571 - 150.015 Torr; 20-theoretical-plates distillation column of Old-ershaw type; |
O,O-diethyl S-(trimethylsilyl) phosphorodithioate
N-sulphinylacetamide
A
bis(diethoxyphosphoryl)disulphide
B
N,O-bis-(trimethylsilyl)-acetamide
C
bis(diethoxyphosphinothioyl)trisulfide
D
Hexamethyldisiloxane
| Conditions | Yield |
|---|---|
| for 24h; Ambient temperature; sealed tube; | A 2.3 g B 1.1 g C 2.1 g D 1.4 g |
O,O-diethyl S-(trimethylsilyl) phosphorodithioate
N-sulphinylacetamide
A
bis(diethoxyphosphoryl)disulphide
B
N,O-bis-(trimethylsilyl)-acetamide
C
Hexamethyldisiloxane
D
1,1,1-trimethyl-N-phenyl-N-(trimethylsilyl)-silanamine
| Conditions | Yield |
|---|---|
| for 24h; Ambient temperature; sealed tube; | A 2.3 g B 1.1 g C 1.4 g D 2.1 g |
N-sulphinylacetamide
phenylthiotrimethylsilane
A
N,O-bis-(trimethylsilyl)-acetamide
B
Hexamethyldisiloxane
C
diphenyldisulfane
| Conditions | Yield |
|---|---|
| for 24h; Ambient temperature; | A 1.6 g B 1.3 g C 1.7 g |
| Conditions | Yield |
|---|---|
| at 165℃; under 112.511 - 150.015 Torr; 20-theoretical-plates distillation column of Old-ershaw type; | 155.7 g |
| at 140 - 166℃; under 75.0075 Torr; 20-theoretical-plates distillation column of Old-ershaw type; | |
| at 163 - 180℃; under 75.0075 - 150.015 Torr; 20-theoretical-plates distillation column of Old-ershaw type; | 167.6 g |
| at 175℃; under 78.7579 - 150.015 Torr; 20-theoretical-plates distillation column of Old-ershaw type; | 199.5 g |
N,O-bis-(trimethylsilyl)-acetamide
| Conditions | Yield |
|---|---|
| In methanol for 18h; Ambient temperature; | 100% |
N,O-bis-(trimethylsilyl)-acetamide
N4-Boc-cytosine
2-(trimethylsilyl)-N4-Boc-cytosine
| Conditions | Yield |
|---|---|
| In acetonitrile at 20℃; for 2h; | 100% |
3-cinnamyloxy-3-(3,4-methylenedioxyphenyl)-2-nitro-1-propanol
N,O-bis-(trimethylsilyl)-acetamide
| Conditions | Yield |
|---|---|
| With triethylamine In toluene; acetonitrile at 85℃; for 24h; | 100% |
N,O-bis-(trimethylsilyl)-acetamide
| Conditions | Yield |
|---|---|
| In N,N-dimethyl-formamide at 20℃; for 0.166667h; | 100% |
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Molecular Formula: C8H21NOSi2
Molecular Weight: 203.43
Index of Refraction: 1.411
Molar Refractivity: 60.83 cm3
Molar Volume: 244.7 cm3
Surface Tension: 17 dyne/cm
Density: 0.83 g/cm3
Flash Point: 65.5 °C
Enthalpy of Vaporization: 38.23 kJ/mol
Boiling Point: 162.1 °C at 760 mmHg
Vapour Pressure: 2.88 mmHg at 25 °C
Melting point: 24 °C
Storage tempreture: 0-6 °C
Sensitive: Moisture sensitive
Appearance: Clear to yellowish clear liquid
Structure of N-(Trimethylsilyl)acetimidic acid, trimethylsilyl ester (CAS NO.10416-59-8):
IUPAC Name: Trimethylsilyl (1E)-N-trimethylsilylethanimidate
Canonical SMILES: CC(=N[Si](C)(C)C)O[Si](C)(C)C
Isomeric SMILES: C/C(=N\[Si](C)(C)C)/O[Si](C)(C)C
InChI: InChI=1S/C8H21NOSi2/c1-8(9-11(2,3)4)10-12(5,6)7/h1-7H3/b9-8+
InChIKey: SIOVKLKJSOKLIF-CMDGGOBGSA-N
Product Category of N-(Trimethylsilyl)acetimidic acid, trimethylsilyl ester (CAS NO.10416-59-8): API intermediates;Trimethylsilylation (GC Derivatizing Reagents);Analytical Chemistry;Biochemistry;Nucleosides, Nucleotides & Related Reagents;Protecting Agents for Hydroxyl and Amino Groups;Protecting Agents, Phosphorylating Agents & Condensing Agents;Synthetic Organic Chemistry
N-(Trimethylsilyl)acetimidic acid, trimethylsilyl ester (CAS NO.10416-59-8) is available for the preparation of protective solute of cephalosporins drugs. As a pharmaceutical intermediate, it can be used to produce cephalo-type antibiotics.
| 1. | ipr-mus LDLo:750 mg/kg | StoGD# Personal Communication to NIOSH from Fr. Gary D. Stoner, Dept. of Community Medicine, School of Medicine, University of California, La Jolla, CA 92037, May 25, 1975 27May75 . |
Reported in EPA TSCA Inventory.
Moderately toxic by intraperitoneal route. Questionable carcinogen with experimental neoplastigenic data. When heated to decomposition it emits toxic fumes of NOx. See also ESTERS.
Hazard Codes: 
C,
Xn,
F
Risk Statements: 10-14-22-34-40-20/21/22-11
10: Flammable
14: Reacts violently with water
22: Harmful if swallowed
34: Causes burns
40: Limited evidence of a carcinogenic effect
20/21/22: Harmful by inhalation, in contact with skin and if swallowed
11: Highly Flammable
Safety Statements: 26-36/37/39-45-7/8-43A-36-30-23-16-7/9
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
7/8: Keep container tightly closed and dry
43: In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add - Never use water)
36: Wear suitable protective clothing
30: Never add water to this product
23: Toxic by inhalation
16: Explosive when mixed with oxidizing substances
7/9: Keep container tightly closed and in a well-ventilated place
RIDADR: UN 2920 8/PG 2
WGK Germany: 3
RTECS: AK3000000
F: 10-21
F10: Keep under argon
F21: Sensitive to humidity
TSCA: Yes
HazardClass: 8
PackingGroup: II
HS Code: 29310095
N-(Trimethylsilyl)acetimidic acid, trimethylsilyl ester , its cas register number is 10416-59-8. It also can be called N,O-Bis(trimethylsilyl)acetamide ; BSA ; Dynasylan BSA ; and Trimethylsilyl N-trimethylsilylacetamidate . It is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product: Do not induce vomiting. Get medical aid immediately. Notes to physician: Treat supportively and symptomatically.
In addition, N-(Trimethylsilyl)acetimidic acid, trimethylsilyl ester (CAS NO.10416-59-8) could be stable under normal temperatures and pressures. It is not compatible with strong oxidizing agents, and you must not take it with incompatible materials, ignition sources, exposure to moist air or water. And also prevent it to broken down into hazardous decomposition products: Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen, silicon dioxide.
