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Sigma-Aldrich

Paraformaldehyde

powder, 95%

Synonym(s):

Polyoxymethylene

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About This Item

Linear Formula:
HO(CH2O)nH
CAS Number:
30525-89-4
Molecular Weight:
30.03 (as monomer)
MDL number:
MFCD00133991
UNSPSC Code:
12352100
PubChem Substance ID:
24849719
NACRES:
NA.21

vapor density

1.03 (vs air)

Quality Level

200

vapor pressure

<1.45 mmHg ( 25 °C)

Assay

95%

form

powder

autoignition temp.

572 °F

expl. lim.

73 %

mp

120-170 °C (lit.)

density

0.88 g/mL at 25 °C (lit.)

storage temp.

2-8°C

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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General description

Paraformaldehyde is also referred as polyoxymethylene. It participates as an external CO source in the synthesis of aromatic aldehydes and esters.

Other Notes

2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 1B - Eye Dam. 1 - Flam. Sol. 2 - Muta. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB1446
STBL3498
SDBB0489
STBL1038
STBL0660

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Sun J, et al.
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Morphological and physiological species-dependent characteristics of the rodent Grueneberg ganglion
Brechbuhl J, et al.
Frontiers in Neuroanatomy, 8, 87-87 (2014)
Cytometry, 256-256 (2000)
In Situ Hybridization in Neurobiology, 27-27 (1994)
Periodate-lysine-paraformaldehyde fixative. A new fixation for immunoelectron microscopy.
I W McLean et al.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 22(12), 1077-1083 (1974-12-01)
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Protocols

Protein Interactions

Formaldehyde cross-linking protocol detects specific protein interactions with confidence.

Protein Interactions

Formaldehyde cross-linking protocol detects specific protein interactions with confidence.

Protein Interactions

Formaldehyde cross-linking protocol detects specific protein interactions with confidence.

Protein Interactions

Formaldehyde cross-linking protocol detects specific protein interactions with confidence.

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