饱和脂肪酸和酯 / 不饱和脂肪酸和酯 / 混合脂肪酸标准品 / 不饱和脂肪酸 / 不饱和脂肪酸和酯标准品 / 脂肪酸和酯 / 甘油酯
|
PRODUCTS
• Fatty Acids and Ester Homologs
(Saturated and Unsaturated, Odd and Even – Chains)
Acid-Methyl Esters – Ethyl Esters
• Glycerides
Triglycerides – Diglycerides – Monoglycerides
• Acid Chlorides
• Fatty Alcohols
• Fatty Acetates
• Cholesteryl Esters
• Alkyl-Methane-Sulfonates
• Soaps of Fatty Acids
• Wax Esters
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|
STANDARD REFERENCE MIXTURES
• GLC Mixtures
• GLC NIH Series
• GLC Alcohol Series
• GLC Acetate Series
• GLC Trigylceride Series
• GLC Special Reference Standards
• TLC Mixtures
|
NU-CHEK PRODUCES A SATURATED SERIES OF FATTY ACID AND ESTER HOMOLOGS FROM C3:0 THROUGH C24:0
AND ARE ALWAYS IN STOCK AND READY FOR SHIPMENT. BELOW ARE A FEW EXAMPLES OF OUR SATURATED SERIES.
Acids and Esters
Purity greater than 99%+ unless otherwise listed.
|
C No. CHAIN
|
FATTY ACID
|
PHYSICAL DATA"
|
COMPOUND DERIVATIVE
|
CODE
|
|
C11:0
|
Undecanoic
(Hendecanoic)
|
mw 186.30
bp15 164°
mp 29.3°
|
Acid
Methyl
Ethyl
|
N-11-A
N-11-M
N-11-E
|
|
C12:0
|
Dodecanoic
(Lauric)
|
mw 200.35
bp1 131°
mp 44.2°
|
Acid
Methyl
Ethyl
|
N-12-A
N-12-M
N-12-E
|
|
C13:0
|
Tridecanoic
|
mw 214.35
bp1 140°
mp 41.5°
|
Acid
Methyl
Ethyl
|
N-13-A
N-13-M
N-13-E
|
|
C14:0
|
Tetradecanoic
(Myristic)
|
mw 228.38
bp1 149°
mp 54.4°
|
Acid
Methyl
Ethyl
|
N-14-A
N-14-M
N-14-E
|
|
C15:0
|
Pentadecanoic
|
mw 242.41
bp1 158°
mp 52.3°
|
Acid
Methyl
Ethyl
|
N-15-A
N-15-M
N-15-E
|
|
C16:0
|
Hexadecanoic
(Palmitic)
|
mw 256.43
bp1 170°
mp 61.3°
|
Acid
Methyl
Ethyl
|
N-16-A
N-16-M
N-16-E
|
|
C17:0
|
Heptadecanoic
(Margaric)
|
mw 270.48
bp100 232°
mp 61.3°
|
Acid
Methyl
Ethyl
|
N-17-A
N-17-M
N-17-E
|
|
C18:0
|
Octadecanoic
(Stearic)
|
mw 284.48
bp15 230°
mp 69.6°
|
Acid
Methyl
Ethyl
|
N-18-A
N-18-M
N-18-E
|
Purity greater than 99%+ unless otherwise listed.
|
C No. CHAIN
|
FATTY ACID
|
PHYSICAL DATA"
|
COMPOUND DERIVATIVE
|
CODE
|
|
C18:0
|
12-Hydroxy
Stearic
|
mw 300.48
|
Acid
Methyl
Ethyl
|
N-18HY-A
N-18HY-M
N-18HY-E
|
|
C19:0
|
Nonadecanoic
|
mw 298.51
bp10 203°
mp 68.65°
|
Acid
Methyl
Ethyl
|
N-19-A
N-19-M
N-19-E
|
|
C20:0
|
Eicosanoic
(Arachidic)
|
mw 312.54
bp1 203°
mp 75.35°
|
Acid
Methyl
Ethyl
|
N-20-A
N-20-M
N-20-E
|
|
C21:0
|
Heneicosanoic
|
mw 326.57
bp1 205°
mp 74.3°
|
Acid
Methyl
Ethyl
|
N-21-A
N-21-M
N-21-E
|
|
C22:0
|
Docosanoic
(Behenic)
|
mw 340.59
bp10 306°
mp 79.953°
|
Acid
Methyl
Ethyl
|
N-22-A
N-22-M
N-22-E
|
|
C23:0
|
Tricosanoic
|
mw 354.61
mp 79.1°
|
Acid
Methyl
Ethyl
|
N-23-A
N-23-M
N-23-E
|
|
C24:0
|
Tetracosanoic
(Lignoceric)
|
mw 368.64
mp 84.15°
|
Acid
Methyl
Ethyl
|
N-24-A
N-24-M
N-24-E
|
UNSATURATED SERIES
Straight chain fatty acids, mono basic, aliphatic, terminating in a single carboxyl group and of reduced hydrogen content than their saturated counterparts, constitute the ethylenic family of unsaturated fatty acids. They are of considerable importance since linkage with other chemical radicals is readily accomplished at the double bond positions. Multiple unsaturation is found in almost all natural occurring vegetable and animal fats. Research in recent years has shown them to be of great significance.
Double bonds are susceptible to oxidation so that stability is a factor to be reckoned with (especially polyunsaturated compounds) when researching unsaturated fatty acids or their corresponding esters.
Highly purified unsaturated compounds prepared in our laboratory are always flushed several times with nitrogen, sealed in glass under vacuum and stored under cold conditions until ready for shipment.
Nu-Chek suggests that when your shipment is received, they should be stored under cold conditions until ready for use. once vial is opened protect with N2 and use as soon as possible.
U-CHEK ALSO PRODUCES AN UNSATURATED SERIES OF FATTY ACIDS AND ESTER HOMOLOGS. AS SEEN BELOW, NU-CHEK PREPARES MANY OMEGA 3 AND OMEGA 6 POLYUNSATURATED FATTY ACIDS. BELOW ARE A FEW OF NU-CHEK'S CORE PRODUCTS, ARACHIDonIC ACID, EICOSAPENTAENOIC ACID, DOCOSAPENTAENOIC ACID, AND DOCOSAHEXAENOIC ACID. ALL ARE >99% BY GC AND TLC ANALYSIS
Acids and Esters
|
C No. CHAIN
|
FATTY ACID
|
PHYSICAL DATA"
|
COMPOUND DERIVATIVE
|
CODE
|
|
C20:3
|
8-11-14 Eicosatrienoic
(Homogamma Linolenic)
|
8 cis
11 cis
14 cis
mw 306.53
|
Acid
Methyl
Ethyl
|
U-69-A
U-69-M
U-69-E
|
|
C20:3
|
11-14-17 Eicosatrienoic
|
11 cis
14 cis
17 cis
mw 306.53
|
Acid
Methyl
Ethyl
|
U-70-A
U-70-M
U-70-E
|
|
C20:4
|
5-8-11-14
Eicosatetraenoic
(Arachidonic)
|
5 cis
8 cis
11 cis
14 cis
mw 304.52
|
Acid
Methyl
Ethyl
|
U-71-A
U-71-M
U-71-E
|
|
C20:5
|
5-8-11-14-17
Eicosapentaenoic
(EPA)
|
all cis
mw 302.52
|
Acid
Methyl
Ethyl
|
U-99-A
U-99-M
U-99-E
|
|
C22:5
|
7-10-13-16-19
Docosapentaenoic (DPA)
|
all cis
mw 330.57
|
Acid
Methyl
Ethyl
|
U-101-A
U-101-M
U-101-E
|
|
C20:4
|
Arachidonic
90%+
|
all cis
mw 304.52
|
Acid
Methyl
Ethyl
|
U-72-A
U-72-M
U-72-E
|
|
C22:1
|
13-Docosenoic
(Erucic)
|
13 cis
mp 33°
mw 338.59
|
Acid
Methyl
Ethyl
|
U-79-A
U-79-M
U-79-E
|
|
C22:1T
|
13-Transdocosenoic
(Brassidic)
|
13 trans
mp 60°
mw 338.59
|
Acid
Methyl
Ethyl
|
U-80-A
U-80-M
U-80-E
|
|
C No. CHAIN
|
FATTY ACID
|
PHYSICAL DATA"
|
COMPOUND DERIVATIVE
|
CODE
|
|
C22:2
|
13-16 Docosadienoic
|
13 cis
16 cis
mw 336.59
|
Acid
Methyl
Ethyl
|
U-81-A
U-81-M
U-81-E
|
|
C22:3
|
13-16-19 Docosatrienoic
|
13 cis
16 cis
19 cis
mw 334.58
|
Acid
Methyl
Ethyl
|
U-82-A
U-82-M
U-82-E
|
|
C22:4
|
7-10-13-16 Docosatetra Enoic
|
7 cis,
10 cis
13 cis,
16 cis
mw 332.57
|
Acid
Methyl
Ethyl
|
U-83-A
U-83-M
U-83-E
|
|
C22:6
|
4-7-10-13-16-19 Docosahexaenoic
(DHA)
|
all cis
mw 328.57
|
Acid
Methyl
Ethyl
|
U-84-A
U-84-M
U-84-E
|
|
C21:1
|
12-Heneicosenoic
|
12 cis
mw 324.57
|
Acid
Methyl
Ethyl
|
U-85-A
U-85-M
U-85-E
|
|
C21:2
|
12-15 Heneicosadienoic
|
12-15
mw 322.57
|
Acid
Methyl
Ethyl
|
U-86-A
U-86-M
U-86-E
|
|
C23:1
|
14-Tricosenoic
|
14 cis
mw 352.60
|
Acid
Methyl
Ethyl
|
U-87-A
U-87-M
U-87-E
|
|
C24:1
|
15-Tetracosenoic (Nervonic)
|
15 cis
mw 366.63
|
Acid
Methyl
Ethyl
|
U-88-A
U-88-M
U-88-E
|
GLYCERIDES
The distribution of random fatty acids in naturally occurring fats and oils in the form of triglycerides dates back to antiquity.
Indeed, the use of soap-cosmetics and oil lubricants dates back thousands of years. While we at Nu-Chek do not profess to go back quite that far, we would like to say that we have been synthesizing pure gylceride standards for the scientific community for over thirty years.
The general procedure for all our triglyceride preparations is well exemplified in Nu-Chek's Triolein. Our starting material is chromatographically pure Methyl Oleate (isolated from the best virgin olive oil available) which is interesterified for the production of crude Triolein. To assure geometric stability of cis double bonds, the material is further purified by such physical techniques as low temperature crystallization and column chromatography. The final purity is followed both by gas liquid and thin layer chromatography.
Other triglycerides are prepared in a similar manner commencing with the particular oil which contains the best concentrates of the specific ester required.
|
CHAIN
|
GLYCERIDE
|
CODE
|
|
C14:1
9 cis
|
Tritetradecenoin
(Myristolein)
Dimyristolein
1-3 Isomer
Monomyristolein
M.W.717.18
|
T-205
D-206
D-207
M-209
|
|
C16:1
9 cis
|
Trihexadecenoin
(Palminitolein)
Dipalmitolein
1-3 Isomer
Monopalmitolein
M.W.801.34
|
T-215
D-216
D-217
M-219
|
|
C18:1
9 cis
|
Trioctadecenoin
(Olein)
Diolein
1-3 Isomer
Monoolein
M.W.885.50
|
T-235
D-236
D-237
M-239
|
|
C18:2 cis
9 cis
12 cis
|
Trioctadecadienoin
(Linolein)
Dilinolein
1-3 Isomer
Monolinein
M.W.879.50
|
T-250
D-251
D-252
M-254
|
|
CHAIN
|
GLYCERIDE
|
CODE
|
|
C18:3
9 cis
12 cis
15 cis
|
Tritetradecenoin
(Linolenin)
Dilinolenin
1-3 Isomer
Monolinolenin
M.W.873.50
|
T-260
D-261
D-262
M-264
|
|
C20:4
all cis
|
5-8-11-14 Trieicosatetraenoin
(Arachidonin)
Diarachidonin
1-3 Isomer
Monoarachidonin
M.W. 951.66
|
T-295
D-296
D-297
M-299
|
|
C20:5
|
5-8-11-14-17 all cis
Trieicosapentaenoin
|
T-325
|
|
C22:6
all cis
4-7-10
13-16-19
|
Tridocosahexaenoin
Didocosahexaenoin
1-3 Isomer
Monodocosahexaenoin
M.W. 1023.82
|
T-310
D-311
D-312
M-314
|
NU-CHEK HAS BEEN PREPARING GLC AND TLC STANDARDS FOR OVER 38 YEARS. WE START BY
PURIFYING EACH INDIVIDUAL FATTY ACID METHY LESTER TO >99%, THEN INCORPORATING THEM INTO
OUR STANDARDS. WE HAVE OVER 130 DIFFERENT STANDARDS TO CHOOSE FROM.
AND CAN MAKE ANYCONCENTRATION OF FATTY ACIDS WHICH NU-CHEK SELLS.
BELOW ARE A FEW COMMON GLC'S WHICH
CAN BE USED TO IDENTIFY VARIOUS SEED OILS OR ANIMAL FAT.
|
CHAIN
|
ITEM
|
CODE
|
% BY WT.
|
SUITABLE OIL
|
|
C16:0
C18:0
C18:1
C18:2
C18:3
C20:0
|
Methyl Palmitate
Methyl Stearate
Methyl Oleate
Methyl Linoleate
Methyl Linolenate
Methyl Arachidate
|
15A
|
6.0
3.0
35.0
50.0
3.0
3.0
|
Corn, PoppySeed,Cotton Seed, Soybean, Walnut, Safflower,
Rapok, Sunflower, Rice, Bran, Sesame
|
|
C16:0
C18:0
C18:1
C18:2
C18:3
|
Methyl Palmitate
Methyl Stearate
Methyl Oleate
Methyl Linoleate
Methyl Linolenate
|
16A
|
7.0
5.0
18.0
36.0
34.0
|
Linseed, Perilla, Hempseed, Rubberseed
|
|
C14:0
C16:0
C18:0
C18:1
C18:2
C18:3
C20:0
C22:0
C22:1
C24:0
|
Methyl Myristate
Methyl Palmitate
Methyl Stearate
Methyl Oleate
Methyl Linoleate
Methyl Linolenate
Methyl Arachidate
Methyl Behenate
Methyl Erucate
Methyl Lignocerate
|
17A
|
1.0
4.0
3.0
45.0
15.0
3.0
3.0
3.0
20.0
3.0
|
Peanut, Rapeseed, Mustardseed
|
|
C16:0
C18:0
C18:1
C18:2
|
Methyl Palmitate
Methyl Stearate
Methyl Oleate
Methyl Linoleate
|
18A
|
11.0
3.0
80.0
6.0
|
Olive, Teaseed, Neatsfoot
|
|
C8:0
C10:0
C12:0
C14:0
C16:0
C18:0
C18.1
C18.2
|
Methyl Caprylate
Methyl Caprate
Methyl Laurate
Methyl Myristate
Methyl Palmitate
Methyl Stearate
Methyl Oleate
Methyl Linoleate
|
19A
|
7.0
5.0
48.0
15.0
7.0
3.0
12.0
3.0
|
Coconut, Palm Kernel, Babassu, Ouri-Curi
|
|
C14:0
C16:0
C16:1
C18:0
C18:1
C18:2
C18:3
|
Methyl Myristate
Methyl Palmitate
Methyl Palmitoleate
Methyl Stearate
Methyl Oleate
Methyl Linoleate
Methyl Linolenate
|
20A
|
2.0
30.0
3.0
14.0
41.0
7.0
3.0
|
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