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

25–48 of 150 products

2-Ethylhexanol, for GC 99.0%

CAS: 104-76-7
Formula: C₈H₁₈O
MW: 130.23 g/mol

ZX-037110

2-Fluoroethanol, for GC >95%

CAS: 371-62-0
Formula: C₂H₅FO
MW: 64.06 g/mol

ZX-019029

2-Mercapto ethanol, for GC ≥99.00%

CAS: 60-24-2
Formula: C₂H₆OS
MW: 78.14 g/mol

ZX-037116

2-Methoxy ethanol, AR, for GC >99%

CAS: 109-86-4
Formula: C₃H₈O₂
MW: 76.09 g/mol

ZX-037412

2-Nitro propane, for GC >95%

CAS: 79-46-9
Formula: C₃H₇NO₂
MW: 89.09 g/mol

ZX-037318

2,3-Dihydroxynaphthalene, for GC >98%

CAS: 92-44-4
Formula: C₁₀H₈O₂
MW: 160.17 g/mol

ZX-037474

2,3-Dimethylphenol, for GC >99%

CAS: 526-75-0
Formula: C₈H₁₀O
MW: 122.16 g/mol

ZX-037370

2,4-Xylidine, for GC

CAS: 95-68-1
Formula: C₈H₁₁N
MW: 121.18 g/mol

ZX-037121

2,5 Dimethylphenol, for GC 97%

CAS: 95-87-4
Formula: C₈H₁₀O
MW: 122.16 g/mol

ZX-037371

2,5-Dimethylaniline, for GC

CAS: 95-78-3
Formula: C₈H₁₁N
MW: 121.18 g/mol

ZX-037122

2,6 Xylidine, for GC

CAS: 87-62-7
Formula: C₈H₁₁N
MW: 121.18 g/mol

ZX-037123

2,6-Difluoro-4-iodoaniline, >98.0%(GC)

CAS: 141743-49-9
Formula: C₆H₄F₂IN
MW: 255 g/mol

ZX-009597

3-Bromo-2-hydroxy-5-nitropyridine, >97.0%(GC)(T)

CAS: 15862-33-6
Formula: C₅H₃BrN₂O₃
MW: 218.99 g/mol

ZX-001065

3-Indoleacetonitrile, for GC 98%

CAS: 771-51-7
Formula: C₁₀H₈N₂
MW: 156.18 g/mol

ZX-037465

3-Octen-2-one, 97% GC

CAS: 1669-44-9
Formula: C₈H₁₄O
MW: 126.2 g/mol

ZX-007055

3,3-Diaminodipropylamine, for GC >97%

CAS: 56-18-8
Formula: C₆H₁₇N₃
MW: 131.22 g/mol

ZX-019037

3,4-Dimethylaniline, for GC >99.5%

CAS: 95-64-7
Formula: C₈H₁₁N
MW: 121.18 g/mol

ZX-037475

3,5-Dibromo-2-hydroxypyridine, >98.0%(GC)(T)

CAS: 13472-81-6
Formula: C₅H₃Br₂NO
MW: 252.89 g/mol

ZX-001063

3,5-Dimethylphenol, for GC >98%

CAS: 108-68-9
Formula: C₈H₁₀O
MW: 122.16 g/mol

ZX-037372

3,5-Lutidine, for GC >98%

CAS: 591-22-0
Formula: C₇H₉N
MW: 107.15 g/mol

ZX-037468

4-Fluoro acetophenone, for GC >98%

CAS: 403-42-9
Formula: C₈H₇FO
MW: 138.14 g/mol

ZX-037345

4-Methyl benzonitrile, for GC >98%

CAS: 104-85-8
Formula: C₈H₇N
MW: 117.15 g/mol

ZX-037413

4,4'-Difluorobenzophenone, for GC >99%

CAS: 345-92-6
Formula: C₁₃H₈F₂O
MW: 218.2 g/mol

ZX-037478

4′,4″(5″)-Di-tert-butyldicyclohexano-18-crown-6 technical, mixture of isomers, ≥90% (GC)

CAS: 223719-29-7
Formula: C₂₈H₅₂O₆
MW: 484.71 g/mol

ZX-000311

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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