Popular Products
Ammonium acetateGR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. ≥99%In Stock Item #: A112055View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- azanium;acetate
- SMILES
- CC(=O)[O-].[NH4+]
- InChIKey
- USFZMSVCRYTOJT-UHFFFAOYSA-N
- InChI
- 1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3
- Synonyms
- AMMONIUM ACETATE|631-61-8|Acetic acid, ammonium salt|Azanium Acetate|acetic acid ammonium salt|ammoniumacetate|azaniu...
Phosphoric acidLiquid GR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. ≥85 wt. % in H2OIn Stock Item #: P112026View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- phosphoric acid
- SMILES
- OP(=O)(O)O
- InChIKey
- NBIIXXVUZAFLBC-UHFFFAOYSA-N
- InChI
- 1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
- Synonyms
- Amberphos 54 | Phosphoric acid (aqueous) | Acide phosphorique | Acido fosforico | BDBM14671 | CCRIS 2949 | Fosforzuur...
Sodium sulfafe decahydrateCAS: 7727-73-3 EC Number: 616-445-4 PubChem CID: 62649 Formula: Na2SO4·10H2O Molecular Weight: 322.2Solid GR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. ≥99%In Stock Item #: S110748View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- disodium;sulfate;decahydrate
- SMILES
- O.O.O.O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[Na+].[Na+]
- InChIKey
- RSIJVJUOQBWMIM-UHFFFAOYSA-L
- InChI
- 1S/2Na.H2O4S.10H2O/c;;1-5(2,3)4;;;;;;;;;;/h;;(H2,1,2,3,4);10*1H2/q2*+1;;;;;;;;;;;/p-2
- Synonyms
- Disodium sulfate decahydrate | Glauber's salt
Ammonium oxalate monohydrateGR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. ≥99.8%In Stock Item #: A111623View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- diazanium;oxalate;hydrate
- SMILES
- C(=O)(C(=O)[O-])[O-].[NH4+].[NH4+].O
- InChIKey
- MSMNVXKYCPHLLN-UHFFFAOYSA-N
- InChI
- 1S/C2H2O4.2H3N.H2O/c3-1(4)2(5)6;;;/h(H,3,4)(H,5,6);2*1H3;1H2
- Synonyms
- Oxalic acid diammonium salt Ammonium oxalate Ethanedioic acid diammonium salt
Lithium hydroxide monohydrateSolid GR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. ≥99%(T)In Stock Item #: L104913View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- lithium;hydroxide;hydrate
- SMILES
- [Li+].O.[OH-]
- InChIKey
- GLXDVVHUTZTUQK-UHFFFAOYSA-M
- InChI
- 1S/Li.2H2O/h;2*1H2/q+1;;/p-1
- Synonyms
- Lithium hydroxide monohydrate | Lithium hydroxide mono-hydrate | Lithium hydroxide monohydrate, p.a., 95.0% | LiOH hy...
Fluorosilicic acid solutionLiquid GR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. 30.0-32.0%In Stock Item #: F111659View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- hexafluorosilicon(2-);hydron
- SMILES
- [H+].[H+].F[Si-2](F)(F)(F)(F)F
- InChIKey
- OHORFAFFMDIQRR-UHFFFAOYSA-P
- InChI
- 1S/F6Si/c1-7(2,3,4,5)6/q-2/p+2
- Synonyms
- Dihydrogen hexafluorosilicate | OHORFAFFMDIQRR-UHFFFAOYSA-P | FLUOSILICIC ACID [MI] | FT-0626488 | Hydrofluorosilicic...
Boric acidGR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. ≥99.8%In Stock Item #: B111594View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- boric acid
- SMILES
- B(O)(O)O
- InChIKey
- KGBXLFKZBHKPEV-UHFFFAOYSA-N
- InChI
- 1S/BH3O3/c2-1(3)4/h2-4H
- Synonyms
- BORIC ACID (EP IMPURITY) | Boric acid (h(sub 3)bo(sub 3)) | INS-284 | [B(OH)3] | Boric acid, NF/USP grade | MFCD00011...
- NonylphenolLiquid GR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements.In Stock Item #: N109556View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- NSC362474 | DTXSID10274053 | 4-(7-methyloctyl)phenol | 4-Isononyl-phenol | Phenol, 4-isononyl-p-Isononylphenol
Sodium acetate trihydrateCAS: 6131-90-4 EC Number: 612-115-9 PubChem CID: 23665404 Formula: C2H3NaO2·3H2O Molecular Weight: 136.08GR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. ≥99.5%In Stock Item #: S111521View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- sodium;acetate;trihydrate
- SMILES
- CC(=O)[O-].O.O.O.[Na+]
- InChIKey
- AYRVGWHSXIMRAB-UHFFFAOYSA-M
- InChI
- 1S/C2H4O2.Na.3H2O/c1-2(3)4;;;;/h1H3,(H,3,4);;3*1H2/q;+1;;;/p-1
- Synonyms
- Acetic acid, sodium salt, trihydrate | AKOS015904397 | SODIUM ACETATE [USP-RS] | D01779 | EN300-345872 | 4550K0SC9B |...
Sodium tetraborate decahydrateCAS: 1303-96-4 EC Number: 603-411-9 PubChem CID: 16211214 Formula: Na2B4O7·10H2O Molecular Weight: 381.37GR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. ≥99.5%In Stock Item #: S112465View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane;decahydrate
- SMILES
- B1(OB2OB(OB(O1)O2)[O-])[O-].O.O.O.O.O.O.O.O.O.O.[Na+].[Na+]
- InChIKey
- CDMADVZSLOHIFP-UHFFFAOYSA-N
- InChI
- 1S/B4O7.2Na.10H2O/c5-1-7-3-9-2(6)10-4(8-1)11-3;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;
- Synonyms
- AKOS015913997 | Sodium borate [JAN:NF] | Tronabor | Acronol Brilliant Lake Blue A | Borax decahydrate | Jaikin | Sodi...
Nickel(II) sulfate hexahydrateGR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. ≥99%In Stock Item #: N100217View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- nickel(2+);sulfate;hexahydrate
- SMILES
- O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[Ni+2]
- InChIKey
- RRIWRJBSCGCBID-UHFFFAOYSA-L
- InChI
- 1S/Ni.H2O4S.6H2O/c;1-5(2,3)4;;;;;;/h;(H2,1,2,3,4);6*1H2/q+2;;;;;;;/p-2
- Synonyms
- Nickel(II) sulfate hexahydrate | Nickelous sulfate hexahydrate | NICKEL SULFATE HEXAHYDRATE | Nickel(II) sulphate hex...
Oxalic acid dihydrateSolid GR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements. ≥99.8%In Stock Item #: O111912View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- oxalic acid;dihydrate
- SMILES
- C(=O)(C(=O)O)O.O.O
- InChIKey
- GEVPUGOOGXGPIO-UHFFFAOYSA-N
- InChI
- 1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2
- Synonyms
- Oxalic acid dihydrate, ACS reagent, >=99% | DTXSID2075003 | DTXCID8043070 | Oxalic acid dihydrate, p.a., ACS reagent,...
Frequently Asked Questions — GR
What does GR mean?
GR is a defined analytical purity tier suitable for general analytical and reagent applications. It specifies a minimum assay percentage, controlled limits on common impurities (water, heavy metals, residue on ignition), and lot-to-lot consistency. GR is one of several purity tiers — choose based on the sensitivity and regulatory requirements of your method.
When should I choose GR over a higher tier?
Choose GR for routine analytical work where the method tolerates the stated impurity limits. Move up to HPLC grade, UltraPureChrom™, or a pharmacopoeia grade (USP, BP, JP, ChP, Ph.Eur.) when your method demands tighter UV absorbance, trace metal limits, or regulated compendial documentation.
Is GR suitable for use as an HPLC mobile phase?
Not by default. Standard analytical purity tiers do not always meet UV absorbance and fluorescence specifications needed for HPLC. For chromatography, choose HPLC grade, HPLC Gradient Grade, or for HPLC plus. For LC-MS work, choose for LC-MS or for UHPLC-MS.
Does GR include a Certificate of Analysis?
Yes. Every lot of an analytical-grade reagent ships with a Certificate of Analysis listing tested specifications. SDS and additional documentation are available on the product page or by request.
What pack sizes are available?
Solid reagents are typically offered in 25 g, 100 g, 500 g and 1 kg units; liquids in 500 mL, 1 L, 2.5 L and 4 L. Bulk and custom packaging are available through the Bulk & Custom Quote workflow.