Name: span (R) 40; Sorbitan monopalmitate
CAS: 26266-57-9
Molecular Formula: C22H42O6
Molecular Weight: 402.565
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Names and Identifiers
Name span (R) 40 hlb-value 6.7
Synonyms Sorbitan monopalmitate
sorbitan palmitate
Span #40 (=Sorbitan monopalmitate)
Span?40
Span 40
Emulsifier S-40
Span-40
[2-[(2R,3S,4R)-3,4-dihydroxytetrahydrofuran-2-yl]-2-hydroxy-ethyl] hexadecanoate
1,4-anhydro-6-O-hexadecanoyl-D-glucitol
CAS 26266-57-9
EINECS 247-568-8
InChI InChI=1/C22H42O6/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-20(25)27-17-19(24)22-21(26)18(23)16-28-22/h18-19,21-24,26H,2-17H2,1H3/t18-,19+,21+,22+/m0/s1

Physico-chemical Properties
Molecular Formula C22H42O6
Molar Mass 402.565 g/mol
Density 1.075g/cm3
Melting Point 46-47℃
Boling Point 558.2°C at 760 mmHg
Flash Point 182.4°C
Vapor Presure 8.77E-15mmHg at 25°C
Refractive Index 1.498

Risk and Safety
Hazard Symbols Xi – Irritant
Irritant
Risk Codes R36/37/38 – Irritating to eyes, respiratory system and skin.
Safety Description S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36 – Wear suitable protective clothing.

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CAS 26266-57-9, Span (R) 40, C22H42O6
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