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604380

Sigma-Aldrich

Paraformaldehyde-13C

≥99 atom % 13C, 99% (CP)

Synonym(s):

Formaldehyde-13C polymer

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About This Item

Linear Formula:
(13CH2O)n
Molecular Weight:
31.02
MDL number:
MFCD00145071
UNSPSC Code:
12162002
PubChem Substance ID:
329758983
NACRES:
NA.12

isotopic purity

≥99 atom % 13C

Quality Level

200

assay

99% (CP)

form

solid

mp

170 °C (dec.) (lit.)

mass shift

M+1

Packaging

This product may be available from bulk stock and can be packaged on demand. For information on pricing, availability and packaging, please contact Stable Isotopes Customer Service.

signalword

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_germany

WGK 2

flash_point_f

158.0 °F - closed cup

flash_point_c

70 °C - closed cup

ppe

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Formaldehyde solution for molecular biology, 36.5-38% in H2O

Sigma-Aldrich

F8775

Formaldehyde solution

André K Eckhardt et al.
Nature chemistry, 10(11), 1141-1147 (2018-09-12)
Carbohydrates (CH2O)n are the formal adducts of carbon (atoms) to water with a repeating unit that structurally resembles H-C̈-OH (hydroxymethylene). Although hydroxymethylene has been suggested as a building block for sugar formation, it is a reactive species that had escaped

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