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Chromatography Standards

Frequently used for calibration, chromatography standards have a known concentration to test separating equipment for performance faults.
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2,476 – 2,490 of 22,273 results
2,479

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)
2,480

Trifluoroacetic acid, ≥99.0% (GC), MilliporeSigma™ Supelco™

Trifluoroacetic acid is a phytotoxic compound belonging to the class of perfluorinated acids (PFAs). It is an environmental contaminant, which contributes to the organo-fluorine burden in surface and ground waters.

Boiling Point 72.4°C
Linear Formula CF3 COOH
Solubility Soluble in water
Physical Form Neat
Grade Analytical Standard
Density 1.489 g/mL (at 20°C)
Vapor Density 3.9 (vs. air)
Vapor Pressure 97.5 mmHg (20°C)
Type Analytical Standard
Percent Purity ≥99.0% (GC)
CAS 76-05-1
MDL Number MFCD00004169
Synonym TFA
RTECS Number AJ9625000
Shelf Life Limited shelf life, expiry date on the label
Formula Weight 114.02
Melting Point -15.4°C
2,482

Methyl acetate, ≥99.9% (GC), MilliporeSigma™ Supelco™

Boiling Point 57°C to 58°C
Linear Formula CH3 COOCH3
Physical Form Neat
Grade Analytical Standard
Ignition Point 936°F
Density 0.934 g/mL (at 25°C)
Vapor Density 2.55 (vs. air)
Vapor Pressure 165 mmHg (20°C)
Type Analytical Standard
Percent Purity ≥99.9% (GC)
CAS 79-20-9
MDL Number MFCD00008711
Flash Point -13°C
RTECS Number AI9100000
Shelf Life Limited shelf life, expiry date on the label
Formula Weight 74.08
Melting Point -98°C
2,483

TraceCERT™ Benzo[j]fluoranthene Solution, 2,000 μg/mL in dichloromethane, MilliporeSigma™ Supelco™

Benzo[j]fluoranthene is a polycyclic aromatic hydrocarbon, which is carcinogenic in nature and can be generated into the environment via combustion of coal, coal tar and petroleum products.

2,485

PESTANAL™ Thiram, MilliporeSigma™ Supelco™

Thiram is a dithiocarbamate fungicide with protective action, used for the control of many fungal diseases affecting fruits, vegetables and ornamentals.

2,488

PESTANAL™ Thiophanate-methyl, MilliporeSigma™ Supelco™

Thiophanate-methyl is a systemic benzimidazole fungicide, commonly used in agriculture for the pre- and post-harvest treatment of pathogen affecting a variety of fruits and vegetables.

2,489

PESTANAL™ Fenthion, MilliporeSigma™ Supelco™

Fenthion is an organophosphorous pesticide, which can find applications in agriculture.It can serve as a potent anti-androgenic inhibitor of dihydrotestosterone.

2,490

PESTANAL™ Carbofuran, MilliporeSigma™ Supelco™

Carbofuran belongs to N-methylcarbamate class of chemicals used to control soil-dwelling and foliar-feeding insects on agricultural crops. Carbofuran acts by inhibiting cholinesterase enzyme activity.