271012
N,N-二甲基乙酰胺
anhydrous, 99.8%
别名:
DMAc
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关于此项目
线性分子式:
CH3CON(CH3)2
化学文摘社编号:
分子量:
87.12
UNSPSC Code:
12352111
NACRES:
NA.21
PubChem Substance ID:
EC Number:
204-826-4
Beilstein/REAXYS Number:
1737614
MDL number:
Assay:
99.8%
Grade:
anhydrous
Bp:
164.5-166 °C (lit.)
Vapor pressure:
2 mmHg ( 25 °C), 4 mmHg ( 38 °C)
grade
anhydrous
Quality Segment
vapor density
3 (vs air)
vapor pressure
2 mmHg ( 25 °C), 4 mmHg ( 38 °C)
assay
99.8%
form
liquid
autoignition temp.
914 °F
expl. lim.
1.8 %, 100 °F, 11.5 %, 160 °F
impurities
<0.005% water
evapn. residue
<0.001%
refractive index
n
pH
4 (20 °C, 200 g/L)
bp
164.5-166 °C (lit.)
mp
−20 °C (lit.)
density
0.937 g/mL at 25 °C (lit.)
SMILES string
CN(C)C(C)=O
InChI
1S/C4H9NO/c1-4(6)5(2)3/h1-3H3
InChI key
FXHOOIRPVKKKFG-UHFFFAOYSA-N
General description
Our anhydrous solvents deliver exceptionally low water content, making them the ideal choice for moisture-sensitive laboratory applications. Packaged in the exclusive Sure/Seal™ septum bottle system, they are reliably protected against moisture ingress from first use to last drop. The innovative Sure/Seal™ closure combines an advanced plug-style liner with an airtight elastomer and crimp cap design to ensure consistent product integrity. Three unique liner materials provide optimal chemical compatibility across a broad range of solvents. Sure/Seal™ packaging is proven to maintain anhydrous conditions even after repeated punctures. With more than 70 products across all major solvent families, available in pack sizes from 100 mL to 2 L, the portfolio meets virtually every laboratory need. By choosing ready-to-use anhydrous solvents in Sure/Seal™ packaging, researchers eliminate the need for time-consuming and hazardous in-house solvent drying and distillation - saving time, reducing risk, and improving reproducibility.
Application
Anhydrous solvents in Sure/Seal™ packaging are essential wherever water contamination would compromise experimental results. They are widely used in moisture-sensitive applications such as organic synthesis - including Grignard reactions, organometallic chemistry, and catalysis - as well as in peptide, oligonucleotide, and pharmaceutical synthesis.
Packaging
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Other Notes
货号271012-4X2L的产品即将停产。请订购271012-2L单瓶装，因为其物理参数与上述产品本质相同。
Legal Information
Sure/Seal is a trademark of Sigma-Aldrich Co. LLC
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Repr. 1B
存储类别
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
flash_point_f
147.2 °F - closed cup
flash_point_c
64 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter