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Key Documents

47673

Sigma-Aldrich

Formaldehyde solution

tested according to Ph. Eur.

Synonym(s):

Formaldehydi solutio 35 per centum, Formalin

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About This Item

Linear Formula:
HCHO
CAS Number:
Molecular Weight:
30.03
Beilstein:
1209228
MDL number:
UNSPSC Code:
12352114
PubChem Substance ID:
NACRES:
NA.25

Agency

USP/NF
tested according to Ph. Eur.

Quality Level

vapor density

1.03 (vs air)

vapor pressure

52 mmHg ( 37 °C)

form

liquid

autoignition temp.

572 °F

contains

9.0-15.0 % (v/v) methanol as stabilizer

concentration

25-50%

solubility

water: soluble

density

1.09 g/mL at 25 °C (lit.)

suitability

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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Application

Formaldehyde solution has been used to fix labeled cells during flow cytometry.

Biochem/physiol Actions

Formaldehyde is the simplest aldehyde that denatures the bihelical regions of RNA and converts the polynucleotides into random coils. It is a genotoxic substance that significantly induces DNA-protein crosslinks (DPC), sister-chromatid exchanges, micronuclei formation and leads to cytotoxicity. It also induces tumors in the nasal epithelium of rats and supposed to be a human carcinogen.

Caution

may become turbid on storage

Signal Word

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

Eyes,Central nervous system, Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

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

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Dependence of the sedimentation coefficient on molecular weight of RNA after reaction with formaldehyde.
H Boedtker
Journal of molecular biology, 35(1), 61-70 (1968-07-14)
J L Wilson et al.
Journal of immunology (Baltimore, Md. : 1950), 163(12), 6365-6370 (1999-12-10)
NK cells have the capacity to spontaneously kill tumor cell lines, in particular cell lines of hemopoietic origin. In contrast, they do not generally kill nontransformed autologous cells. However, here we demonstrate that short-term activated polyclonal human NK cells, as
O Merk et al.
Environmental and molecular mutagenesis, 32(3), 260-268 (1998-11-14)
Formaldehyde (FA) is a genotoxic substance, induces tumors in the nasal epithelium of rats, and is suspected to be a human carcinogen. As a primary DNA lesion, FA induces DNA-protein crosslinks (DPC) and the formation of DPC has been used
Cindy S Ma et al.
The Journal of experimental medicine, 205(7), 1551-1557 (2008-07-02)
Hyper-immunoglobulin E syndrome (HIES) is a primary immune deficiency characterized by abnormal and devastating susceptibility to a narrow spectrum of infections, most commonly Staphylococcus aureus and Candida albicans. Recent investigations have identified mutations in STAT3 in the majority of HIES
Stephanie Belloc et al.
Fertility and sterility, 101(6), 1588-1593 (2014-04-03)
To evaluate sperm DNA fragmentation in normozoospermic male partners of couples undergoing infertility evaluation. Retrospective cohort study. Clinical andrology laboratory. A total of 1,974 consecutive normozoospermic men selected from a larger cohort of 4,345 consecutive, nonazoospermic men presenting for infertility

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