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721123

2-Methyl-2-butanol

anhydrous, ≥99%

Synonym(s):

tert-Amyl alcohol, tert-Pentyl alcohol

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About This Item

Linear Formula:
CH3CH2C(CH3)2OH
CAS Number:
75-85-4
Molecular Weight:
88.15
UNSPSC Code:
12352001
NACRES:
NA.21
PubChem Substance ID:
329763822
EC Number:
200-908-9
Beilstein/REAXYS Number:
1361351
MDL number:
MFCD00004478
Assay:
≥99%
Grade:
anhydrous
Bp:
102 °C (lit.)
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grade

anhydrous

Quality Segment

vapor density

3 (vs air)

assay

≥99%

form

liquid

autoignition temp.

819 °F

expl. lim.

9 %

impurities

≤0.003% water (Karl Fischer, all unit sizes greater than 100 mL), ≤0.005% water (100 mL pkg)

evapn. residue

≤0.0005%

refractive index

n20/D 1.405 (lit.)

pH

6.0 (20 °C, 118 g/L)

bp

102 °C (lit.)

mp

−12 °C (lit.)

density

0.805 g/mL at 25 °C (lit.)

SMILES string

CCC(C)(C)O

InChI

1S/C5H12O/c1-4-5(2,3)6/h6H,4H2,1-3H3

InChI key

MSXVEPNJUHWQHW-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.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

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Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Central nervous system, Respiratory system

Storage Class

3 - Flammable liquids

WGK

WGK 1

Flash Point (°F)

68.9 °F - closed cup

Flash Point (°C)

20.5 °C - closed cup

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