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NU-CHEK 标准品
Chemical Name
NU-CHEK 标准品
References

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.

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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