Girard's reagent, GR

Name: Girard's reagent, GR
Brand: Vaqora Chemicals
SKU: VQ-003687

About Girard's reagent, GR

Vaqora Chemicals supplies Girard's reagent (AR grade), a biological detergent registered under CAS number 1126-58-5 with a typical assay of 95%. Its molecular formula is C7H10ClN3O and its molecular weight is 187.63 g/mol. Systematically, it is named 2-pyridin-1-ium-1-ylacetohydrazide chloride. It is also known as (1-Pyridinio)acetohydrazide chloride or Girard P reagent.

The material typically appears as white to yellow to orange powder or crystals or chunks. Literature values give a melting point of 203 °C. Keep the container tightly sealed and store it in a cool, dry area. It carries the GHS signal word “Warning” with 2 hazard statements. Review the Safety Data Sheet before use.

Key uses span cell lysis, membrane protein solubilisation and electrophoresis. Typical end-use sectors are academic and industrial research and diagnostics and biotechnology.

Vaqora Chemicals supplies Girard's reagent in 25 g, 100 g, 5 kg and 4 x 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Cell lysis
Membrane protein solubilisation
Electrophoresis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Girard's reagent, GR
Catalogue No.	VQ-003687
CAS Number	1126-58-5
IUPAC name	2-pyridin-1-ium-1-ylacetohydrazide chloride
Molecular formula	C₇H₁₀ClN₃O
Molecular weight	187.63 g/mol
Exact mass	187.0512
Grade	AR
Purity / assay	95%
HSN code	29280090
InChIKey	NDXLVXDHVHWYFR-UHFFFAOYSA-N
SMILES	C1=CC=[N+](C=C1)CC(=O)NN.[Cl-]
PubChem CID	70773

Physical properties
Physical form	Crystalline
Appearance	White to yellow to orange powder or crystals or chunks
Melting point	203 °C
H-bond donors / acceptors	2 / 3
TPSA	59 Å²
Synonyms	1-(hydrazinocarbonylmethyl)pyridinium chloride, (1-Pyridinio)acetohydrazide chloride, Pyridinium, 1-(2-hydrazino-2-oxoethyl)-, chloride, Girard P reagent, Girard reagent P, Pyridinioacetohydrazide chloride, Pyridinium, 1-(2-hydrazinyl-2-oxoethyl)-, chloride (1:1), 1-(2-hydrazino-2-oxoethyl)pyridinium chloride, Pyridinium, 1-(carboxymethyl)-, chloride, hydrazide, 1(Carboxymethyl)pyridinium chloride hydrazide, 1(Hydrazinocarbonylmethyl)pyridinium chloride, Pyridinium, 1(2hydrazino2oxoethyl), chloride

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation

Precautionary statements: P264, P264 + P265, P280, P302 + P352, P305 + P351 + P338, P321, P332 + P317, P337 + P317, P362 + P364

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Girard's reagent, GR?

The CAS Registry Number of Girard's reagent, GR is 1126-58-5. It is also known as 1-(hydrazinocarbonylmethyl)pyridinium chloride, (1-Pyridinio)acetohydrazide chloride, Pyridinium, 1-(2-hydrazino-2-oxoethyl)-, chloride.

What is the molecular formula and molecular weight of Girard's reagent, GR?

Girard's reagent, GR has the molecular formula C7H10ClN3O and a molecular weight of 187.63 g/mol. Its IUPAC name is 2-pyridin-1-ium-1-ylacetohydrazide chloride.

Which grade and pack sizes of Girard's reagent, GR can I order?

We supply Girard's reagent, GR in AR (95%) grade, in 25 g, 100 g, 5 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Girard's reagent, GR?

Yes. Every lot of Girard's reagent, GR is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Girard's reagent, GR be shipped internationally?

Yes. Girard's reagent, GR is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.