Can I use HPLC grade hexane for GC?

Sometimes, but HPLC grade is tested for UV absorbance rather than GC peaks. Trace volatile impurities that are invisible to a UV detector can show up on an FID or ECD, so a GC or residue grade is the safer choice for trace work.

Why is DMSO used for headspace residual solvent testing?

DMSO has a high boiling point, dissolves most drug substances and elutes well after common residual solvents. A headspace grade is tested to show that it contributes no measurable peaks for the solvents listed in ICH Q3C.

What does a lindane equivalent mean on a COA?

Pesticide residue grade solvents report ECD-active impurities as if they were lindane, after concentrating the solvent. It gives a single figure for electron-capturing contaminants that would interfere with organochlorine residue methods.

Chemical grade

GC Grade chemicals

Solvents for gas chromatography with high GC purity, low non-volatile residue and few peaks that interfere with FID, ECD or MS.

150 products in this grade

GC Grade products

97–120 of 150 products

Hexane, fraction, for HPLC, for GC 99%

CAS: 110-54-3
Formula: C₆H₁₄
MW: 86.18 g/mol

ZX-037280

iso-Butyl alcohol, for GC 99.9%

CAS: 78-83-1
Formula: C₄H₁₀O
MW: 74.12 g/mol

ZX-037272

Isobutyl benzene, for GC >99%

CAS: 538-93-2
Formula: C₁₀H₁₄
MW: 134.22 g/mol

ZX-037394

Isooctane, AR, for GC >99.5%

CAS: 540-84-1
Formula: C₈H₁₈
MW: 114.23 g/mol

ZX-037395

Isooctane, for GC

CAS: 540-84-1
Formula: C₈H₁₈
MW: 114.23 g/mol

ZX-038474

Isooctane, for pesticide residue analysis 99.8%

CAS: 540-84-1
Formula: C₈H₁₈
MW: 114.23 g/mol

ZX-037039

Isopropanol, for GC 99.8%

CAS: 67-63-0
Formula: C₃H₈O
MW: 60.1 g/mol

ZX-036975

m-Xylene, for GC >99%

CAS: 108-38-3
Formula: C₈H₁₀
MW: 106.16 g/mol

ZX-037422

Malononitrile, for GC >98%

CAS: 109-77-3
Formula: C₃H₂N₂
MW: 66.06 g/mol

ZX-037400

Methanol, for GC 99.9%

CAS: 67-56-1
Formula: CH₄O
MW: 32.04 g/mol

ZX-036994

Methanol, for GC, Reference Standard

CAS: 67-56-1
Formula: CH₄O
MW: 32.04 g/mol

ZX-037431

Methanol, for pesticide residue analysis 99.8%

CAS: 67-56-1
Formula: CH₄O
MW: 32.04 g/mol

ZX-037003

Methyl acetate, AR, for GC >99.5%

CAS: 79-20-9
Formula: C₃H₆O₂
MW: 74.08 g/mol

ZX-038680

Methyl cyclohexane, for GC >99%

CAS: 108-87-2
Formula: C₇H₁₄
MW: 98.19 g/mol

ZX-037414

Methyl cyclopentane, for GC >99%

CAS: 96-37-7
Formula: C₆H₁₂
MW: 84.16 g/mol

ZX-037416

Methyl iodide, AR, for GC >99.5%

CAS: 74-88-4
Formula: CH₃I
MW: 141.94 g/mol

ZX-037287

Myristic acid, AR, for GC 99.5%

CAS: 544-63-8
Formula: C₁₄H₂₈O₂
MW: 228.37 g/mol

ZX-037291

n-Eicosane, for GC 97%

CAS: 112-95-8
Formula: C₂₀H₄₂
MW: 282.5 g/mol

ZX-037378

n-Heptane, for GC 99.5%

CAS: 142-82-5
Formula: C₇H₁₆
MW: 100.2 g/mol

ZX-037023

N-Methyl-N-(trimethylsilyl)trifluoroacetamide, for GC >98%

CAS: 24589-78-4
Formula: C₆H₁₂F₃NOSi
MW: 199.25 g/mol

ZX-037433

n-Octane, AR, for GC >99.5%

CAS: 111-65-9
Formula: C₈H₁₈
MW: 114.23 g/mol

ZX-037316

n-Octane, for GC >99%

CAS: 111-65-9
Formula: C₈H₁₈
MW: 114.23 g/mol

ZX-037317

n-Undecane, AR, for GC >99%

CAS: 1120-21-4
Formula: C₁₁H₂₄
MW: 156.31 g/mol

ZX-037420

N,N-Dimethylacetamide, GC grade, 99.9%

CAS: 127-19-5
Formula: C₄H₉NO
MW: 87.12 g/mol

ZX-001872

Compare with other grades

HPLC Grade AR Grade (Analytical Reagent)ACS Grade LR Grade (Laboratory Reagent)Extra Pure Grade Molecular Biology Grade Spectroscopy Grade LC-MS Grade IP Grade (Indian Pharmacopoeia)BP Grade (British Pharmacopoeia)USP Grade (United States Pharmacopeia)Ph. Eur. Grade (European Pharmacopoeia)Food Grade (FCC)Technical Grade Electronic Grade Deuterated and Stable-Isotope-Labelled Compounds Pharmaceutical Secondary Reference Standards Grades guide

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