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上海惠诚生物2011年致力于美国NU-CHEK 标准品的推广和技术服务，专门生产高纯度脂肪酸、酯及其衍生物标准品的专业厂家，近10年的积累，常规DHA ,EPA等系列甲酯/乙酯/甘油酯类，是上海惠诚生物的常规库存产品，包括25mg/100mg /1g 等规格，如需了解NU-CHEK脂肪酸标准品更多，请电话021-60498804
NU-CHEK 标准品
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
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.
NU-CHEK ALSO PRODUCES AN UNSATURATED SERIES OF FATTY ACIDS AND ESTER HOMOLOGS. AS
SEEN BELOW, NU-CHEK REPARES 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.
UNSATURATED SERIES
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 geometricstability 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.
IF YOU STILL CAN'T FIND WHAT YOU ARE LOOKING FOR, JUST CALL, FAX OR E-MAIL. WE HAVE CUSTOM
SYNTHESIS AVAILABLE 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 Lard, Beef Tallow, Mutton Tallow, Palm
美国NU-CHEK公司专门生产高纯度脂肪酸、酯及其衍生物标准品的专业厂家，国际上许多权威的标准机构，分析测试单位以及知名科研机构都采用该司产品作为分析的标样，产品也广泛的被许多国际上权威文献所引用。
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