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185906

Sigma-Aldrich

Formamide

reagent grade, 98%

Synonym(s):

Amide C1, Formic amide

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About This Item

Linear Formula:
HCONH2
CAS Number:
75-12-7
Molecular Weight:
45.04
Beilstein/REAXYS Number:
505995
EC Number:
200-842-0
MDL number:
MFCD00007941
UNSPSC Code:
12352111
PubChem Substance ID:
329751719
grade:
reagent grade
assay:
98%
bp:
210 °C (lit.)
vapor pressure:
0.08 mmHg ( 20 °C)
30 mmHg ( 129 °C)

grade

reagent grade

vapor density

1.55 (vs air)

vapor pressure

0.08 mmHg ( 20 °C)
30 mmHg ( 129 °C)

assay

98%

form

liquid

autoignition temp.

932 °F

expl. lim.

2.7-19 % (lit.)

dilution

(for analytical testing)

refractive index

n20/D 1.447 (lit.)

bp

210 °C (lit.)

mp

2-3 °C (lit.)

density

1.134 g/mL at 25 °C (lit.)

SMILES string

NC=O

InChI

1S/CH3NO/c2-1-3/h1H,(H2,2,3)

Inchi Key

ZHNUHDYFZUAESO-UHFFFAOYSA-N

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Application

Formamide destabilizes nucleic acid duplexes and may be used, typically, at a concentration of 50%, in hybridization protocols requiring lower hybridization temperatures.

Pictograms

Health hazard
GHS08

signalword

Danger

Hazard Classifications

Carc. 2 - Repr. 1B - STOT RE 2 Oral

target_organs

Blood

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 1

flash_point_f

305.6 °F

flash_point_c

152 °C

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX2114
MKCX1695
MKCV4779
MKCT8076
MKCT6479

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Solubilization in formamide protects RNA from degradation.
Chomczynski P.
Nucleic Acids Research, 20(14), 3791-3791 (1992)
J Casey et al.
Nucleic acids research, 4(5), 1539-1552 (1977-01-01)
The thermal stabilities of RNA:DNA hybrids are substantially greater than those of DNA:DNA duplexes in aqueous electrolyte solutions containing high concentrations of formamide. Association rates to form DNA:DNA duplexes and DNA:RNA hybrids have been measured in these solvents. There is
Microwave spectrum and molecular structure of formamide.
Costain CC and Dowling JM.
J. Chem. Phys. , 32(1), 158-165 (1960)
The formamide method for the extraction of polysaccharides from haemolytic streptococci.
Fuller AT.
British Journal of Experimental Pathology, 32(1), 130-130 (1960)
Formamide can dramatically improve the specificity of PCR.
G Sarkar et al.
Nucleic acids research, 18(24), 7465-7465 (1990-12-25)
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