Can I use a spectroscopy grade solvent for HPLC?

Often the UV performance is similar, but spectroscopy grades are not always filtered to 0.2 µm or tested for residue and gradient behaviour. For HPLC, a purpose-made HPLC grade is the safer choice.

Why does potassium bromide need its own grade?

KBr discs for IR must be transparent across the mid-IR range and free of water, which absorbs strongly. Spectroscopy grade KBr is dried and tested for clear background, and it should be stored in a desiccator.

What causes fluorescence background in a solvent?

Traces of aromatic compounds and some stabilisers fluoresce under UV excitation. Fluorescence grade solvents are purified to remove them, and the COA reports background against a quinine sulfate reference.

Chemical grade

Spectroscopy Grade chemicals

Solvents and salts with guaranteed transmittance in the UV, visible or IR region and low fluorescence, for spectrophotometric work.

155 products in this grade

Spectroscopy Grade products

25–48 of 155 products

Adenosine, for spectroscopy 98.5%

CAS: 58-61-7
Formula: C₁₀H₁₃N₅O₄
MW: 267.24 g/mol

ZX-037672

Alcian blue 8GX, for spectroscopy, for microscopy 50%

CAS: 33864-99-2
Formula: C₅₆H₇₀Cl₄CuN₁₆S₄
MW: 1300.9 g/mol

ZX-037620

Alizarin red S, for spectroscopy 70%

CAS: 130-22-3
Formula: C₁₄H₇NaO₇S
MW: 342.26 g/mol

ZX-037660

Alizarin red S, for spectroscopy 70%

CAS: 130-22-3
Formula: C₁₄H₇NaO₇S
MW: 342.26 g/mol

ZX-037661

Amido black 10B, LR, for spectroscopy, for electrophoresis

CAS: 1064-48-8
Formula: C₂₂H₁₄N₆Na₂O₉S₂
MW: 616.5 g/mol

ZX-038197

Aminopterin, for spectroscopy 98%

CAS: 54-62-6
Formula: C₁₉H₂₀N₈O₅
MW: 440.4 g/mol

ZX-037488

Ammonium-d4 Formate-d, for spectroscopy, for NMR

CAS: 65387-23-7
Formula: CH₅NO₂
MW: 68.09 g/mol

ZX-019432

Ammonium-d8 Sulphate, for spectroscopy, for NMR

CAS: 13814-01-2
Formula: H₈N₂O₄S
MW: 140.19 g/mol

ZX-019433

Avidin, From Egg white, for spectroscopy ≥85.00%

CAS: 1405-69-2
Formula: C₄H₈O₂
MW: 88.11 g/mol

ZX-019587

Benzene-d6, for spectroscopy, for NMR

CAS: 1076-43-3
Formula: C₆H₆
MW: 84.15 g/mol

ZX-018811

Benzene, for HPLC, for spectroscopy 99.8%

CAS: 71-43-2
Formula: C₆H₆
MW: 78.11 g/mol

ZX-037028

Benzene, for spectroscopy, 99%+

CAS: 71-43-2
Formula: C₆H₆
MW: 78.11 g/mol

ZX-001843

Benzoic-d5 Acid, for spectroscopy, for NMR

CAS: 1079-02-3
Formula: C₇H₆O₂
MW: 127.15 g/mol

ZX-019417

Benzyl Alcohol, for HPLC, for spectroscopy ≥99.80%

CAS: 100-51-6
Formula: C₇H₈O
MW: 108.14 g/mol

ZX-038442

Bilirubin, AR, for spectroscopy 99%

CAS: 635-65-4
Formula: C₃₃H₃₆N₄O₆
MW: 584.7 g/mol

ZX-037302

Biphenyl-d10, for spectroscopy, for NMR

CAS: 1486-01-7
Formula: C₁₂H₁₀
MW: 164.27 g/mol

ZX-019418

Bismark brown R, for spectroscopy 40%

CAS: 5421-66-9
Formula: C₂₁H₂₆Cl₂N₈
MW: 461.4 g/mol

ZX-037625

Boric Acid-d3, for spectroscopy, for NMR

CAS: 14149-58-7
Formula: BH₃O₃
MW: 64.85 g/mol

ZX-019437

Brilliant yellow, for spectroscopy 70.0%

CAS: 3051-11-4
Formula: C₂₆H₁₈N₄Na₂O₈S₂
MW: 624.6 g/mol

ZX-037626

Calmagite, AR, for spectroscopy 60.0%

CAS: 3147-14-6
Formula: C₁₇H₁₄N₂O₅S
MW: 358.4 g/mol

ZX-037632

Carbon disulphide, for spectroscopy

CAS: 75-15-0
Formula: CS₂
MW: 76.15 g/mol

ZX-037445

Carbon tetrachloride, for HPLC, for spectroscopy 99.8%

CAS: 56-23-5
Formula: CCl₄
MW: 153.8 g/mol

ZX-037251

Carbon tetrachloride, for spectroscopy, 99%+

CAS: 56-23-5
Formula: CCl₄
MW: 153.8 g/mol

ZX-001845

Chloramphenicol, for spectroscopy

CAS: 56-75-7
Formula: C₁₁H₁₂Cl₂N₂O₅
MW: 323.13 g/mol

ZX-038372

Compare with other grades

HPLC Grade GC Grade AR Grade (Analytical Reagent)ACS Grade LR Grade (Laboratory Reagent)Extra Pure Grade Molecular Biology 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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