Merck
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252549

Sigma-Aldrich

Formaldehyde solution

ACS reagent, 37 wt. % in H2O, contains 10-15% Methanol as stabilizer (to prevent polymerization)

Synonym(s):
Formalin
Linear Formula:
HCHO
CAS Number:
Molecular Weight:
30.03
Beilstein:
1209228
Número MDL:
ID de la sustancia en PubChem:
NACRES:
NA.21

grado

ACS reagent

Nivel de calidad

200

densidad de vapor

1.03 (vs air)

presión de vapor

52 mmHg ( 37 °C)
52 mmHg ( 37 °C)

ensayo

36.5-38.0%

formulario

liquid

temp. de autoignición

572 °F

contiene

10-15% Methanol as stabilizer (to prevent polymerization)

concentración

37 wt. % in H2O

impurezas

≤0.006 meq/g Titr. acid

residuo de ign.

≤0.005%

color

APHA: ≤10

índice de refracción

n20/D 1.3765

densidad

1.09 g/mL at 25 °C (lit.)

trazas de anión

chloride (Cl-): ≤5 ppm
sulfate (SO42-): ≤0.002%

trazas de catión

Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

idoneidad

suitable for manufacturing use (Laboratory chemicals)

SMILES string

[H]C([H])=O

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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Descripción general

Formaldehyde (formalin) is produced by oxidation of methanol. It is made of 37% formaldehyde and impurities such as methanol, small amounts of formic acid, aldehydes and ketones. It is used as a denaturant in formaldehyde-agarose gel electrophoresis of RNA.

Aplicación

Formaldehyde solution has been used as a fixing agent to fix cells during immunofluorescence imaging and for cross-linking cells during chromatin immunoprecipitation (ChIP) assay.
Formaldehyde solution has been used for cross-linking/fixing of cells in ChIP (chromatin immunoprecipitation) assay. It has been used for fixing of cells for imaging.

Envase

25, 100, 4×100, 500, 6×500 mL in glass bottle
1, 4 L in glass bottle

Forma física

This product is a solution of approximately 37% by weight of formaldehyde gas in water.

Otras notas

The article number 252549-4X2.5L will be discontinued. Please order the single bottle 252549-2.5L which is physically identical with the same exact specifications.
The article number 252549-6X1L will be discontinued. Please order the single bottle 252549-1L which is physically identical with the same exact specifications.

Palabra de señalización

Danger

Clasificaciones de peligro

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Flam. Liq. 3 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 1 - STOT SE 3

Órganos de actuación

Respiratory system

Código de clase de almacenamiento

3 - Flammable liquids

WGK

WGK 3

Punto de inflamabilidad F

132.8 °F - closed cup

Punto de inflamabilidad C

56 °C - closed cup


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

Certificate of Analysis

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Certificate of Origin

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