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388505

Sigma-Aldrich

Carbon-13C monoxide

≥99 atom % 13C, ≤6 atom % 18O

Synonym(s):

13C Labeled carbon monoxide

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About This Item

Linear Formula:
13CO
CAS Number:
Molecular Weight:
29.00
MDL number:
UNSPSC Code:
12352119
PubChem Substance ID:
NACRES:
NA.12

isotopic purity

≥99 atom % 13C
≤6 atom % 18O

Assay

99% (CP)

mp

−207 °C (lit.)

density

1.25 g/mL at 25 °C (lit.)

mass shift

M+1

SMILES string

[13C-]#[O+]

InChI

1S/CO/c1-2/i1+1

InChI key

UGFAIRIUMAVXCW-OUBTZVSYSA-N

Application

Important basic building block for 13C labeled compounds. Also employed in astrophysical science and radiation chemistry.

Packaging

All gas volumes are quoted at Standard Temperature and Pressure (STP) and not at Normal Temperature and Pressure (NTP). One STP Liter is 7.7% more gas than one NTP Liter.
Standard products are packaged in a 450 mL carbon steel lecture bottle with brass CGA 110/180 valve. Nominal gas pressures at 21ºC are 20 psig for 1 L and 320 psig for 10 L. These pressures are slightly above atmospheric pressure. Care must be taken when extracting this product from the cylinder.

Recommended products

Stainless steel control valves Z146951, Z187224 or either of stainless steel regulators Z148504 and Z148512 is recommended.
PTFE sealing washers GCA inlet size 180 Z146994
PTFE sealing washers CGA inlet size 110 Z146986

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Inhalation - Flam. Gas 1A - Press. Gas Compr. Gas - Repr. 1A - STOT RE 1 Inhalation

Target Organs

Heart

Storage Class Code

2A - Gases

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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The Astrophysical Journal, 436, 203-203 (1994)
Astronomy and Astrophysics, 291, 250-250 (1994)

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