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71289

Sigma-Aldrich

Sodium azide

BioUltra, ≥99.5% (T)

Synonym(s):

NaN3, Natrium azide

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About This Item

Linear Formula:
NaN3
CAS Number:
26628-22-8
Molecular Weight:
65.01
EC Number:
247-852-1
MDL number:
MFCD00003536
UNSPSC Code:
12352302
PubChem Substance ID:
57652280
NACRES:
NA.21

product line

BioUltra

Quality Level

200

Assay

≥99.5% (T)

form

crystals

impurities

insoluble matter, passes filter test

loss

≤0.1% loss on drying, 105 °C, 4 h

pH

~10.0 (25 °C, 1 M in H2O)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤100 mg/kg
Li: ≤5 mg/kg
Mg: ≤10 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

absorption

cut-off at 276 nm in H2O at 1 M

SMILES string

[Na]N=[N+]=[N-]

InChI

1S/N3.Na/c1-3-2;/q-1;+1

InChI key

PXIPVTKHYLBLMZ-UHFFFAOYSA-N

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Application

Sodium azide has been used as a reagent:
  • in flow cytometry buffer
  • in bromodeoxyuridine (BrdU) labeling of synchronized hydroxyurea (HU)-arrested cells
  • to immobilize worms

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2 Oral

Target Organs

Brain

Supplementary Hazards

EUH032

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic 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

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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