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Chromatography Standards

Frequently used for calibration, chromatography standards have a known concentration to test separating equipment for performance faults.
Drug Standards (11,577)
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1,486 – 1,500 of 23,021 results
1,487

Undecane, ≥99.8% (GC), MilliporeSigma™ Supelco™

Undecane is obtained from the refining of petroleum. It is a component of gasoline and is generally used in organic synthesis, petroleum research and as a distillation chaser.

Boiling Point 196°C
Linear Formula CH3(CH2)9 CH3
Physical Form Neat
Grade Analytical Standard
Density 0.74 g/mL (at 25°C)
Vapor Density 5.4 (vs. air)
Vapor Pressure <0.4 mmHg (20°C)
Type Analytical Standard
Percent Purity ≥99.8% (GC)
CAS 1120-21-4
MDL Number MFCD00008959
Flash Point 62°C
Synonym n-Undecane; Hendecane
RTECS Number YQ1525000
Shelf Life Limited shelf life, expiry date on the label
Formula Weight 156.31
Melting Point -26°C
1,492

PESTANAL™ Bronopol, MilliporeSigma™ Supelco™

Bronopol is a broad-spectrum antibacterial agent. It is mostly used as a preservative in cosmetic, toiletry etc. It is also used in aerosol formulations.1

1,493

2-Methyl-2-butene, ≥99% (GC), MilliporeSigma™ Supelco™

2-Methyl-2-butene is a trisubstituted olefin which is mostly used as a precursor for peroxyacetyl nitrate. It can be prepared by the acid-catalyzed dehydration of 3-methyl-2-butanol. It has 3 alkyl groups on the double bond.

Boiling Point 35°C to 38°C
Linear Formula CH3 CH=C(CH3)2
Physical Form Neat
Grade Analytical Standard
Density 0.662 g/mL (at 25°C)
Vapor Density 2.4 (vs. air)
Type Analytical Standard
Percent Purity ≥99% (GC)
CAS 513-35-9
MDL Number MFCD00009276
Flash Point -20°C
Synonym beta-Isoamylene; Amylene
Shelf Life Limited shelf life, expiry date on the label
Formula Weight 70.13
Melting Point -134°C
1,494

Melting Point Standard, 47-49°C, MilliporeSigma™ Supelco™

Boiling Point 305°C
Linear Formula (C6H5)2 CO
CAS 119-61-9
MDL Number MFCD00003076
Physical Form Neat
Grade Analytical Standard
Synonym Benzophenone; Diphenyl ketone; Diphenylmethanone; NSC 8077
RTECS Number DI9950000
Shelf Life Limited shelf life, Expiry date on the label
Formula Weight 182.22
Melting Point 47°C to 49°C (±0.3 C); 47°C to 51°C
Vapor Pressure 1 mmHg (108°C)
1,497

tert-Butanol, Analytical Standard, ≥99.8% (GC), MilliporeSigma™ Supelco™

tert-butanol can find applications as an ideal reaction medium or solvent for the lipase-catalyzed biodiesel production.

Boiling Point 83°C
Linear Formula (CH3)3 COH
Physical Form Neat
Grade Analytical Standard
Density 0.775 g/mL (at 25°C)
Vapor Density 2.5 (vs. air)
Vapor Pressure 31 mmHg (20°C)
Percent Purity ≥99.8% (GC)
CAS 75-65-0
MDL Number MFCD00004464
Synonym 2-Methyl-2-propanol; tert-Butyl alcohol; Trimethyl carbinol
RTECS Number EO1925000
Shelf Life Limited shelf life, Expiry date on the label
Formula Weight 74.12
Melting Point 23°C to 26°C
1,500

PESTANAL™ Isoproturon, MilliporeSigma™ Supelco™

Isoproturon is a phenylurea herbicide used to control ryegrass, silky bentgrass, and broadleaf species in spring and winter wheat.