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158127

Paraformaldehyde

95%, powder

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)
UNSPSC Code:
12352100
PubChem Substance ID:
24849719
NACRES:
NA.21
MDL number:
MFCD00133991
Assay:
95%
Form:
powder
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Product Name

Paraformaldehyde, powder, 95%

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

SMILES string

[O-]#[C+H2]

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

General description

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

Application

Paraformaldehyde can be used as a:
  • Methylene building block in the Mannich reaction with primary amines and alkynes to synthesize propargyl amines.
  • Hydroxymethylation reagent to synthesize homoallylic alcohols by reacting with 1,1-disubstituted allenes.
  • Formylation reagent in the Ir-catalyzed N-formylation of amines to synthesize formamides.

Other Notes

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

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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

4.1B - Flammable solid hazardous materials

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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.

30525-89-4

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB8027
SDBB6966
SDBB8194
SDBB6667
SDBB6666

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Cytometry, 256-256 (2000)
L L Lanier et al.
Journal of immunological methods, 47(1), 25-30 (1981-01-01)
The objective of this study was to find a simple method to preserve cells for subsequent flow cytometry (FACS) analysis. We determined that fixation in 1% paraformaldehyde-0.85% saline solution did not significantly alter the Coulter volume, light scatter of fluorescence
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