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???(????)
???(????) ??? ???
?? ??:
623-65-4
???:
???(????)
???(??):
??????;???(????);??? ???
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Palmitic anhydride
???(??):
PALMITIC ANHYDRIDE;Palmitic Anhydridee;Dipalmitic anhydride;PalmiticAnhydride>Bispalmitic anhydride;HEXADECANOIC ANHYDRIDE;Palmitic anhydride 97%;Palmitic anhydride,96%;Palmitic anhydride 99+%;Bishexadecanoic anhydride
CBNumber:
CB6459824
???:
C32H62O3
??? ??:
494.83
MOL ??:
623-65-4.mol
MSDS ??:
SDS

???(????) ??

???
61-64 °C (lit.)
?? ?
547.77°C (rough estimate)
??
0.8388
???
1.4364 (estimate)
?? ??
Inert atmosphere,Room Temperature
???
almost transparency in Toluene
??? ??
powder to crystal
??
???? ?? ??
BRN
1807507
InChI
InChI=1S/C32H62O3/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31(33)35-32(34)30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-30H2,1-2H3
InChIKey
QWZBEFCPZJWDKC-UHFFFAOYSA-N
SMILES
C(=O)(CCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCC
LogP
14.107 (est)
CAS ??????
623-65-4(CAS DataBase Reference)
EPA
Palmitic acid anhydride (623-65-4)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? C
?? ???? ?? 34
????? 26-36/37/39-45-25
????(UN No.) UN 3261 8/PG 2
WGK ?? 3
F ?????? 10-21
TSCA TSCA listed
?? ?? 8
???? III
HS ?? 29159000
???? ??? 11 - Combustible Solids
????(GHS): Corrosion (GHS05)
?? ?: Danger
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H290 ??? ???? ? ?? ?? ????? ?? 1 ?? P234, P390, P404
H314 ??? ?? ??? ?? ??? ??? ????? ?? ????? ?? 1A, B, C ?? P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
??????:
P234 ??? ???? ?????.
P260 ??·?·??·???·??·...·????? ???? ???.
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P280 ????/???/???/?????? ?????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P310 ?? ????(??)? ??? ????. ???? ?? ????(??)? ??? ????.
P390 ????? ???? ?? ???? ??????.
P405 ???? ?????.
P406 ??? ???? ?????/...???? ??
P501 ...? ??? / ??? ?? ???.
NFPA 704
0
3 0

???(????) C??? ??, ??, ??

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white powder

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Palmitic anhydride was used in the synthesis of water-soluble N-palmitoyl chitosan (PLCS) by coupling with swollen chitosan in dimethyl sulfoxide (DMSO). It was also used in the synthesis of N-acylphosphatidylserine.

?? ??

Palmitic anhydride reacted with 20-methyl spirolide G to form a derivative with a retention time and spectrum identical with the metabolite, 17-O-palmitoyl-20-methyl spirolide G.

Purification Methods

It is moisture sensitive and hydrolyses in water. Purify it by refluxing with acetic anhydride for 1hour, evaporating and freeing the residue of acetic acid and anhydride by drying the residue at high vacuum and recrystallising from pet ether at low temperature. [Beilstein 2 IV 1181.]

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