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305405

Sigma-Aldrich

Octadecyl isocyanate

≥90%

Synonym(s):

1-Isocyanatooctadecane, 1-Octadecyl isocyanate, ODI, Stearyl isocyanate, n-Octadecyl isocyanate

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About This Item

Linear Formula:
CH3(CH2)17NCO
CAS Number:
112-96-9
Molecular Weight:
295.50
EC Number:
204-019-7
MDL number:
MFCD00002041
UNSPSC Code:
12352100
PubChem Substance ID:
24858430
NACRES:
NA.22

vapor pressure

1 mmHg ( 154 °C)

Assay

≥90%

refractive index

n20/D 1.45 (lit.)

bp

172-173 °C/5 mmHg (lit.)

mp

15-16 °C (lit.)

density

0.847 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CCCCCCCCCCCCCCCCCCN=C=O

InChI

1S/C19H37NO/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-20-19-21/h2-18H2,1H3

InChI key

QWDQYHPOSSHSAW-UHFFFAOYSA-N

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Application

Octadecyl isocyanate (n-octadecyl isocyanate) was employed for chemical modification of:
  • surface of cellulose nanocrystals to promote interfacial filler/matrix interactions
  • poly (2-hydroxyethyl methacrylate) (pHEMA) films, to investigate in vitro hemocompatibility assay using freshly drawn human whole blood
  • cellulose nanocrystals (or whiskers) and microfibrillated cellulose (MFC)

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

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

WGK

WGK 1

Flash Point(F)

300.2 °F - closed cup

Flash Point(C)

149 °C - closed cup

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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Gilberto Siqueira et al.
Langmuir : the ACS journal of surfaces and colloids, 26(1), 402-411 (2009-11-20)
Cellulose nanocrystals (or whiskers) and microfibrillated cellulose (MFC) were successfully obtained from sisal fibers and modified with n-octadecyl isocyanate (C(18)H(37)NCO) using two different methods with one innovation that consists of an in situ solvent exchange procedure. The surface chemical modification
Gilberto Siqueira et al.
Carbohydrate polymers, 91(2), 711-717 (2012-11-06)
Cellulose nanocrystals have been prepared by acid hydrolysis of Luffa cylindrica fibers. The acid-resistant residue consisted of rod-like nanoparticles with an average length an diameter around 242 and 5.2nm, respectively (aspect ratio around 46). These cellulose nanocrystals have been used
Marion Fischer et al.
Biomaterials, 33(31), 7677-7685 (2012-07-31)
Albumin-scavenging surfaces decorated with n-alkyl chains represent an established strategy for blood-contacting applications. To evaluate this concept, a set of poly (2-hydroxyethyl methacrylate) (pHEMA) films modified with different amounts of octadecyl isocyanate (C18) was investigated in an in vitro hemocompatibility

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