Is extra pure material tested to a pharmacopoeia?

Not necessarily. Extra pure is a reagent grade defined by the producer. If you need a pharmacopoeial grade, ask for IP, BP, USP or Ph. Eur. material, and the COA will name the monograph.

How do I compare extra pure products from different producers?

Put the specifications side by side and check assay, the impurities listed and their limits. The product compare feature on Zemixal shows grade data together, which makes differences easy to spot.

Can extra pure be used for preparing buffers?

For most routine buffers, yes. For buffers used in validated assays or regulated testing, many laboratories prefer AR grade so the impurity profile is fully specified.

Chemical grade

Extra Pure Grade chemicals

A middle grade with higher assay and more impurity tests than LR, below a full AR specification, widely used for synthesis.

640 products in this grade

Extra Pure Grade products

73–96 of 640 products

2-Di-tert-butylphosphino-2',4',6'-triisopropylbiphenyl, extra pure

CAS: 564483-19-8
Formula: C₂₉H₄₅P
MW: 424.6 g/mol

ZX-019255

2-Ethoxypropene, extra pure >97%

CAS: 926-66-9
Formula: C₅H₁₀O
MW: 86.13 g/mol

ZX-019067

2-Ethyl-pyridine, extra pure

CAS: 100-71-0
Formula: C₇H₉N
MW: 107.15 g/mol

ZX-019027

2-Ethylhexanoyl chloride, extra pure >97%

CAS: 760-67-8
Formula: C₈H₁₅ClO
MW: 162.66 g/mol

ZX-019024

2-Ethylhexyl chloroformate, extra pure >98%

CAS: 24468-13-1
Formula: C₉H₁₇ClO₂
MW: 192.68 g/mol

ZX-019025

2-Fluorobenzylbromide, extra pure >99%

CAS: 446-48-0
Formula: C₇H₆BrF
MW: 189.02 g/mol

ZX-019028

2-Imidazolidinone hemihydrate, extra pure >98%

CAS: 121325-67-5
Formula: C₆H₁₄N₄O₃
MW: 190.2 g/mol

ZX-019083

2-Iodoheptafluoropropane, extra pure >98%

CAS: 677-69-0
Formula: C₃F₇I
MW: 295.93 g/mol

ZX-018946

2-Mercapto-5-methoxybenzimidazole, extra pure >98%

CAS: 37052-78-1
Formula: C₈H₈N₂OS
MW: 180.23 g/mol

ZX-037410

2-Mercaptobenzoic acid, extra pure >98%

CAS: 147-93-3
Formula: C₇H₆O₂S
MW: 154.19 g/mol

ZX-037403

2-Methoxyfuran, extra pure >97%

CAS: 25414-22-6
Formula: C₅H₆O₂
MW: 98.1 g/mol

ZX-019190

2-Methyl furan, extra pure >99%

CAS: 534-22-5
Formula: C₅H₆O
MW: 82.1 g/mol

ZX-019135

2-Methyl pentane, extra pure

CAS: 107-83-5
Formula: C₆H₁₄
MW: 86.18 g/mol

ZX-019108

2-Methyl-1-imidazoline, extra pure >95%

CAS: 534-26-9
Formula: C₄H₈N₂
MW: 84.12 g/mol

ZX-019225

2-Methyl-4-Nitrobenzoic Acid, extra pure >97%

CAS: 1975-51-5
Formula: C₈H₇NO₄
MW: 181.15 g/mol

ZX-037466

2-Nitrobenzenesulfonyl chloride, extra pure >97%

CAS: 1694-92-4
Formula: C₆H₄ClNO₄S
MW: 221.62 g/mol

ZX-018982

2-PAM chloride, extra pure >97%

CAS: 51-15-0
Formula: C₇H₉ClN₂O
MW: 172.61 g/mol

ZX-019181

2-Phenethyliso cyanate ~96%, extra pure 96%

CAS: 1943-82-4
Formula: C₉H₉NO
MW: 147.17 g/mol

ZX-018977

2-Thenoyl trifluoroacetone, extra pure >99%

CAS: 326-91-0
Formula: C₈H₅F₃O₂S
MW: 222.19 g/mol

ZX-037401

2-Thioadenosine, extra pure

CAS: 43157-50-2
Formula: C₁₀H₁₃N₅O₄S
MW: 299.31 g/mol

ZX-019121

2-Trimethylsilyloxy-1,3-butadiene, extra pure

CAS: 38053-91-7
Formula: C₇H₁₄OSi
MW: 142.27 g/mol

ZX-019156

2,2-Azobis-2-methyl propionamide hydrochloride, extra pure >98%

CAS: 2997-92-4
Formula: C₈H₂₀Cl₂N₆
MW: 271.19 g/mol

ZX-019002

2,2-Difluoroacetic acid, extra pure >98%

CAS: 381-73-7
Formula: C₂H₂F₂O₂
MW: 96.03 g/mol

ZX-019222

2,2,2-Trifluoroethyl iodide, extra pure >99%

CAS: 353-83-3
Formula: C₂H₂F₃I
MW: 209.94 g/mol

ZX-019167

Compare with other grades

HPLC Grade GC Grade AR Grade (Analytical Reagent)ACS Grade LR Grade (Laboratory Reagent)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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