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47608

Sigma-Aldrich

Formaldehyde solution

for molecular biology, BioReagent, ≥36.0% in H2O (T)

Synonym(s):
Formalin
Linear Formula:
HCHO
CAS Number:
Molecular Weight:
30.03
Beilstein:
1209228
MDL number:
PubChem Substance ID:
NACRES:
NA.52

Quality Level

grade

for molecular biology

vapor density

1.03 (vs air)

vapor pressure

52 mmHg ( 37 °C)

product line

BioReagent

assay

36.0-38.0% (aldehyde method)

form

liquid

autoignition temp.

572 °F

contains

~10% methanol as stabilizer

concentration

≥36.0% in H2O (T)

application(s)

electrophoresis: suitable

impurities

≤0.03% free acid (as HCOOH)

ign. residue

≤0.05% (as SO4)

pH

2.8-4.0

density

1.09 g/mL at 20 °C
1.09 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤20 mg/kg

cation traces

Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Na: ≤100 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤1 mg/mL

λ

2 M in H2O

UV absorption

λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01

suitability

in accordance for electrophoresis of RNA in agarose gels

storage temp.

room temp

SMILES string

[H]C([H])=O

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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General description

Formaldehyde is a molecular biology reagent that denaturates RNA during electrophoresis when incorporated in agarose gels.

Application

Suitable for
  • denaturation and separation of RNA molecules
  • anti-bacterial treatment
  • fixation of cells

Caution

may contain precipitate (paraformaldehyde)

Principle

Formaldehyde disrupts the secondary structure of RNA and allows separation and identification of RNA species based on charge migration.

signalword

Danger

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK Germany

WGK 3

Flash Point F

133.0 °F - closed cup

Flash Point C

56.11 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Jin Qian et al.
Virology, 474, 10-18 (2014-12-03)
Interferon-induced transmembrane (IFITM) proteins inhibit the entry of a large number of viruses. Not surprisingly, many viruses are refractory to this inhibition. In this study, we report that different strains of HIV and SIV are inhibited by human IFITM proteins...
Y Jiang et al.
Oncogene, 34(50), 6079-6091 (2015-03-10)
Epstein-Barr virus (EBV) causes human lymphoid malignancies, and the EBV product latent membrane protein 1 (LMP1) has been identified as an oncogene in epithelial carcinomas such as nasopharyngeal carcinoma (NPC). EBV can epigenetically reprogram lymphocyte-specific processes and induce cell immortalization....
Dannis G van Vuurden et al.
Neuro-oncology, 16(7), 946-959 (2014-01-29)
Glial brain tumors cause considerable mortality and morbidity in children and adults. Innovative targets for therapy are needed to improve survival and reduce long-term sequelae. The aim of this study was to find a candidate tumor-promoting protein, abundantly expressed in...
Oliver Wicht et al.
Journal of virology, 88(14), 7952-7961 (2014-05-09)
Isolation of porcine epidemic diarrhea coronavirus (PEDV) from clinical material in cell culture requires supplementation of trypsin. This may relate to the confinement of PEDV natural infection to the protease-rich small intestine of pigs. Our study focused on the role...
John N Griffin et al.
PLoS genetics, 11(3), e1005018-e1005018 (2015-03-11)
The production of ribosomes is ubiquitous and fundamental to life. As such, it is surprising that defects in ribosome biogenesis underlie a growing number of symptomatically distinct inherited disorders, collectively called ribosomopathies. We previously determined that the nucleolar protein, NOL11...

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