Peptide Coupling Reagents

Filters

Ethyl (hydroxyimino)cyanoacetate

Purity:

≥ 99% (HPLC)

Synonym:

Ethyl cyano(hydroxyimino)acetate

Catalog Number:

26426

Purity Limit:

≥ 99% (HPLC)

CAS Number:

3849-21-6

MDL NO:

MFCD00002112

Molecular Formula:

C₅H₆N₂O₃

Molecular Weight:

142.11

Specification Sheet SDS
1-Hydroxybenzotriazole hydrate wetted with not less than 20 wt. % water

Hazmat

Purity:

≥ 99% (HPLC)

Synonym:

HOBt hydrate

Hazmat

Catalog Number:

24755

Purity Limit:

≥ 99% (HPLC)

CAS Number:

123333-53-9

MDL NO:

MFCD00065690

Molecular Formula:

C₆H₅N₃O·xH₂O

Molecular Weight:

135.12

Specification Sheet SDS
O-(6-Chlorobenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

Purity:

≥ 98% (HPLC)

Synonym:

1-[Bis(dimethylamino)methylen]-5-chlorobenzotriazolium 3-oxidetetrafluoroborate

Catalog Number:

23208

Purity Limit:

≥ 98% (HPLC)

CAS Number:

330641-16-2

MDL NO:

MFCD04973270

Molecular Formula:

C₁₁H₁₅BClF₄N₅O

Molecular Weight:

355.53

Specification Sheet SDS
Bis(pentafluorophenyl) carbonate

Purity:

≥ 99% (GC)

Synonym:

PFPC

Catalog Number:

23085

Purity Limit:

≥ 99% (GC)

CAS Number:

59483-84-0

MDL NO:

MFCD00368353

Molecular Formula:

C₁₃F₁₀O₃

Molecular Weight:

394.13

Specification Sheet SDS
Succinimidyl iodoacetate

Purity:

≥ 98% (HPLC)

Synonym:

SIA

Catalog Number:

22998

Purity Limit:

≥ 98% (HPLC)

CAS Number:

39028-27-8

MDL NO:

MFCD00058451

Molecular Formula:

C₆H₆NO₄I

Molecular Weight:

283.02

Specification Sheet SDS
Ethyl 1-hydroxy-1H-1,2,3-triazole-4-carboxylate

Purity:

≥ 98% (Assay)

Catalog Number:

15129

Purity Limit:

≥ 98% (Assay)

CAS Number:

137156-41-3

MDL NO:

MFCD06796746

Molecular Formula:

C₅H₇N₃O₃

Molecular Weight:

157.13

Specification Sheet SDS
O-(1H-6-Chlorobenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate

Purity:

≥ 99% (HPLC)

Synonym:

HCTU

Catalog Number:

14260

Purity Limit:

≥ 99% (HPLC)

CAS Number:

330645-87-9

MDL NO:

MFCD04973268

Molecular Formula:

C₁₁H₁₅CIF₆N₅OP

Molecular Weight:

413.69

Specification Sheet SDS
1,1'-Carbonyldi(1,2,4-triazole)

Purity:

≥ 98%

Synonym:

CDT

Catalog Number:

14114

Purity Limit:

≥ 98%

CAS Number:

41864-22-6

MDL NO:

MFCD00043399

Molecular Formula:

C₅H₄N₆O

Molecular Weight:

164.13

Specification Sheet SDS
4-Nitrobenzyl chloroformate

Hazmat

Purity:

≥ 98% (HPLC)

Synonym:

4-Nitrobenzyl chlorocarbonate

Hazmat

Catalog Number:

12968

Purity Limit:

≥ 98% (HPLC)

CAS Number:

4457-32-3

MDL NO:

MFCD00007375

Molecular Formula:

C₈H₆ClNO₄

Molecular Weight:

215.6

Specification Sheet SDS
Chloro-dipyrrolidinocarbenium hexafluorophosphate

Purity:

≥ 98% (HPLC)

Synonym:

PyClU

Catalog Number:

12939

Purity Limit:

≥ 98% (HPLC)

CAS Number:

135540-11-3

MDL NO:

MFCD00191333

Molecular Formula:

C₉H₁₆ClF₆N₂P

Molecular Weight:

332.66

Specification Sheet SDS
Bis(4-nitrophenyl)carbonate

Purity:

≥ 98% (HPLC)

Synonym:

4-Nitrophenyl carbonate

Catalog Number:

12948

Purity Limit:

≥ 98% (HPLC)

CAS Number:

5070-13-3

MDL NO:

MFCD00007322

Molecular Formula:

C₁₃H₈N₂O₇

Molecular Weight:

304.21

Specification Sheet SDS
N,N'-Di-tert-butylcarbodiimide

Hazmat

Purity:

≥ 99% (GC)

Hazmat

Catalog Number:

12908

Purity Limit:

≥ 99% (GC)

CAS Number:

691-24-7

MDL NO:

MFCD00010231

Molecular Formula:

C₉H₁₈N₂

Molecular Weight:

154.26

Specification Sheet SDS
O-(N-Succinimidyl)-N,N,N',N'-tetramethyl uronium hexafluoro phosphate

Purity:

≥ 99% (HPLC)

Synonym:

N,N,N',N'-Tetramethyl-O-(N-succinimidyl)uroniumhexafluorophosphate

Catalog Number:

12880

Purity Limit:

≥ 99% (HPLC)

CAS Number:

265651-18-1

MDL NO:

MFCD01863753

Molecular Formula:

C₉H₁₆F₆N₃O₃P

Molecular Weight:

359.21

Specification Sheet SDS
N-Hydroxysulfosuccinimide sodium salt

Purity:

≥ 99% (HPLC)

Synonym:

Hydroxy-2,5-dioxo-pyrrolidine-3-sulfonic-acid sodium salt

Catalog Number:

12831

Purity Limit:

≥ 99% (HPLC)

CAS Number:

106627-54-7

MDL NO:

MFCD00043100

Molecular Formula:

C₄H₄NNaO₆S

Molecular Weight:

217.13

Specification Sheet SDS
Oxalic acid diimidazolide

Purity:

≥ 98% (Assay by Titration)

Synonym:

1,1'-Oxalyldi-imidazole

Catalog Number:

12829

Purity Limit:

≥ 98% (Assay by Titration)

CAS Number:

18637-83-7

MDL NO:

MFCD00043067

Molecular Formula:

C₈H₆N₄O₂

Molecular Weight:

190.16

Specification Sheet SDS
3-(Diethoxy-phosphoryloxy)-3H-benzo[d][1,2,3]triazin-4-one

Purity:

≥ 98.5% (HPLC)

Synonym:

DEPBT

Catalog Number:

11460

Purity Limit:

≥ 98.5% (HPLC)

CAS Number:

165534-43-0

MDL NO:

MFCD01236967

Molecular Formula:

C₁₁H₁₄N₃O₅P

Molecular Weight:

299.22

Specification Sheet SDS
Triphosgene

Hazmat

Purity:

≥ 99% (Assay)

Synonym:

Bis(trichloromethyl) carbonate

Hazmat

Catalog Number:

07205

Purity Limit:

≥ 99% (Assay)

CAS Number:

32315-10-9

MDL NO:

MFCD00062848

Molecular Formula:

C₃Cl₆O₃

Molecular Weight:

296.7

Specification Sheet SDS
P-Chlorodiphenylphosphine

Hazmat

Purity:

≥ 98% (GC)

Synonym:

Diphenyl chlorophosphine

Hazmat

Catalog Number:

06895

Purity Limit:

≥ 98% (GC)

CAS Number:

1079-66-9

MDL NO:

MFCD00000529

Molecular Formula:

C₁₂H₁₀ClP

Molecular Weight:

220.64

Specification Sheet SDS
Tetramethylfluoroformamidiniun hexafluorophosphate

Purity:

≥ 98% (HPLC)

Synonym:

TFFH

Catalog Number:

05189

Purity Limit:

≥ 98% (HPLC)

CAS Number:

164298-23-1

MDL NO:

MFCD02684443

Molecular Formula:

C₅H₁₂N₂PF₇

Molecular Weight:

264.12

Specification Sheet SDS
O-[(Ethoxycarbonyl)cyanomethyleneamino]-N,N,N',N'-tetramethyluronium tetrafluoro-borate

Purity:

≥ 99% (HPLC)

Synonym:

TOTU

Catalog Number:

04884

Purity Limit:

≥ 99% (HPLC)

CAS Number:

136849-72-4

MDL NO:

MFCD00192127

Molecular Formula:

C₁₀H₁₇BF₄N₄O₃

Molecular Weight:

328.08

Specification Sheet SDS
4-Nitrophenyl chloroformate

Synonym:

4-Nitrophenyl chlorocarbonate

Catalog Number:

04897

CAS Number:

7693-46-1

MDL NO:

MFCD00007321

Molecular Formula:

C₇H₄NO₄Cl

Molecular Weight:

201.57

SDS
2-Chloro-1-methylpyridinium iodide

Purity:

≥ 98% (HPLC)

Synonym:

Mukaiyama's reagent

Catalog Number:

04881

Purity Limit:

≥ 98% (HPLC)

CAS Number:

14338-32-0

MDL NO:

MFCD00011984

Molecular Formula:

C₆H₇NClI

Molecular Weight:

255.49

Specification Sheet SDS
Chlorotripyrrolidinophosphonium hexafluorophosphate

Purity:

≥ 98% (HPLC)

Synonym:

PyCloP

Catalog Number:

04880

Purity Limit:

≥ 98% (HPLC)

CAS Number:

133894-48-1

MDL NO:

MFCD00210035

Molecular Formula:

C₁₂H₂₄F₆N₃P₂Cl

Molecular Weight:

421.74

Specification Sheet SDS
1-Hydroxy-6-(trifluoromethyl)benzotriazole

Hazmat

Purity:

≥ 98% (HPLC)

Synonym:

6-(Trifluoro-methyl)-HOBT

Hazmat

Catalog Number:

03533

Purity Limit:

≥ 98% (HPLC)

CAS Number:

26198-21-0

MDL NO:

MFCD00038806

Molecular Formula:

C₇H₄N₃OF₃

Molecular Weight:

203.12

Specification Sheet SDS
N-Hydroxyphthalimide

Purity:

≥ 99% (Assay)

Synonym:

2-Hydroxy-1H-isoindole-1,3(2H-dione

Catalog Number:

02322

Purity Limit:

≥ 99% (Assay)

CAS Number:

524-38-9

MDL NO:

MFCD00005891

Molecular Formula:

C₈H₅NO₃

Molecular Weight:

163.13

Specification Sheet SDS
O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

Hazmat

Purity:

≥ 98% (HPLC)

Synonym:

TBTU

Hazmat

Catalog Number:

02056

Purity Limit:

≥ 98% (HPLC)

CAS Number:

125700-67-6

MDL NO:

MFCD00077413

Molecular Formula:

C₁₁H₁₆N₅O·BF₄

Molecular Weight:

321.1

Specification Sheet SDS
2,4,5-Trichlorophenol

Hazmat

Purity:

≥ 95% (GC)

Synonym:

2,4,5-Trichloro-1-hydroxy-benzene

Hazmat

Catalog Number:

02361

Purity Limit:

≥ 95% (GC)

CAS Number:

95-95-4

MDL NO:

MFCD00002170

Molecular Formula:

C₆H₃Cl₃O

Molecular Weight:

197.45

Specification Sheet SDS
2-Succinimido-1,1,3,3-tetramethyluronium tetrafluoroborate

Purity:

≥ 99% (HPLC)

Synonym:

TSTU

Catalog Number:

02357

Purity Limit:

≥ 99% (HPLC)

CAS Number:

105832-38-0

MDL NO:

MFCD00077875

Molecular Formula:

C₉H₁₆O₃N₃BF₄

Molecular Weight:

301.1

Specification Sheet SDS
4-Nitrophenyl trifluoroacetate

Purity:

≥ 99% (HPLC)

Synonym:

Trifluoroacetic acid 4-nitrophenyl ester

Catalog Number:

02341

Purity Limit:

≥ 99% (HPLC)

CAS Number:

658-78-6

MDL NO:

MFCD00007324

Molecular Formula:

C₈H₄F₃NO₄

Molecular Weight:

235.12

Specification Sheet SDS
4-Nitrophenol

Hazmat

Purity:

≥ 99% (assay)

Synonym:

HONP

Hazmat

Catalog Number:

02340

Purity Limit:

≥ 99% (assay)

CAS Number:

100-02-7

MDL NO:

MFCD00007331

Molecular Formula:

C₆H₅NO₃

Molecular Weight:

139.11

Specification Sheet SDS
4-Pyrrolidinopyridine

Hazmat

Purity:

≥ 98% (Assay)

Synonym:

1-(4-Pyridyl)pyrrolidine

Hazmat

Catalog Number:

02356

Purity Limit:

≥ 98% (Assay)

CAS Number:

2456-81-7

MDL NO:

MFCD00006415

Molecular Formula:

C₉H₁₂N₂

Molecular Weight:

148.2

Specification Sheet SDS
2-(2-Pyridon-1yl)-1,1,3,3-tetramethyluronium tetrafluoroborate

Purity:

≥ 99% (HPLC)

Synonym:

TPTU/TOPPyU

Catalog Number:

02355

Purity Limit:

≥ 99% (HPLC)

CAS Number:

125700-71-2

MDL NO:

MFCD00075475

Molecular Formula:

C₁₀H₁₆BF₄N₃O₂

Molecular Weight:

297.06

Specification Sheet SDS
2-(5-Norbornen-2,3-dicarboximido)-1,1,3,3-tetramethyluronium tetrafluoroborate

Purity:

≥ 99% (HPLC)

Synonym:

TNTU

Catalog Number:

02343

Purity Limit:

≥ 99% (HPLC)

CAS Number:

125700-73-4

MDL NO:

MFCD00167753

Molecular Formula:

C₁₄H₂₀BF₄N₃O₃

Molecular Weight:

365.14

Specification Sheet SDS
N,N'-Disuccinimidyl carbonate

Purity:

≥ 98% (HPLC)

Synonym:

DSC

Catalog Number:

02309

Purity Limit:

≥ 98% (HPLC)

CAS Number:

74124-79-1

MDL NO:

MFCD00009767

Molecular Formula:

C₉H₈N₂O₇

Molecular Weight:

256.2

Specification Sheet SDS
N-Hydroxy-5-norbornene-endo-2,3-dicarboximide

Purity:

≥ 98% (Assay)

Synonym:

HONB

Catalog Number:

02321

Purity Limit:

≥ 98% (Assay)

CAS Number:

21715-90-2

MDL NO:

MFCD00065691

Molecular Formula:

C₉H₉NO₃

Molecular Weight:

179.2

Specification Sheet SDS
(Benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate

Purity:

≥ 99% (HPLC)

Synonym:

BOPP

Catalog Number:

02276

Purity Limit:

≥ 99% (HPLC)

CAS Number:

128625-52-5

MDL NO:

MFCD00077411

Molecular Formula:

C₁₈H₂₈N₆OP·F₆P

Molecular Weight:

520.34

Specification Sheet SDS
Diphenyl phosphoryl azide

Hazmat

Purity:

≥ 99% (GC)

Synonym:

Phosphoric acid diphenyl ester azide

Hazmat

Catalog Number:

02307

Purity Limit:

≥ 99% (GC)

CAS Number:

26386-88-9

MDL NO:

MFCD00001987

Molecular Formula:

C₁₂H₁₀N₃O₃P

Molecular Weight:

275.2

Specification Sheet SDS
N-Cyclohexyl-N'-(2-morpholinoethyl)carbodiimide methyl-p-toluenesulfonate

Purity:

≥ 96% (NMR)

Synonym:

Morpho-CDI

Catalog Number:

02297

Purity Limit:

≥ 96% (NMR)

CAS Number:

2491-17-0

MDL NO:

MFCD00011979

Molecular Formula:

C₁₄H₂₆N₃O·C₇H₇O₃S

Molecular Weight:

423.6

Specification Sheet SDS
Bromo-tris-pyrrolidino-phosphonium hexafluorophosphate

Purity:

≥ 99% (HPLC)

Synonym:

Bromotripyrrolidinophosphonium hexafluorophosphate

Catalog Number:

02275

Purity Limit:

≥ 99% (HPLC)

CAS Number:

132705-51-2

MDL NO:

MFCD00077412

Molecular Formula:

C₁₂H₂₄N₃P₂BrF₆

Molecular Weight:

466.2

Specification Sheet SDS
N,N-Bis(2-oxo-3-oxazolidinyl)phosphinic chloride

Hazmat

Purity:

≥ 98% (Assay)

Synonym:

BOP-Cl

Hazmat

Catalog Number:

02280

Purity Limit:

≥ 98% (Assay)

CAS Number:

68641-49-6

MDL NO:

MFCD00010077

Molecular Formula:

C₆H₈ClN₂O₅P

Molecular Weight:

254.6

Specification Sheet SDS
3-Nitro-1H-1,2,4-triazole

Purity:

≥ 99% (Assay)

Catalog Number:

00941

Purity Limit:

≥ 99% (Assay)

CAS Number:

24807-55-4

MDL NO:

MFCD00009749

Molecular Formula:

C₂H₂N₄O₂

Molecular Weight:

114.1

Specification Sheet SDS
2-Fluoro-1-methylpyridinium 4-toluenesulfonate

Purity:

≥ 98% (NMR)

Synonym:

1 Methyl-2-fluoropyridinium tosylate

Catalog Number:

01278

Purity Limit:

≥ 98% (NMR)

CAS Number:

58086-67-2

MDL NO:

MFCD00011983

Molecular Formula:

C₆H₇FN·C₇H₇O₃S

Molecular Weight:

283.3

Specification Sheet SDS
1H-1,2,4-Triazole

Purity:

≥ 99% (HPLC)

Synonym:

Pyrrodiazole

Catalog Number:

00942

Purity Limit:

≥ 99% (HPLC)

CAS Number:

288-88-0

MDL NO:

MFCD00005228

Molecular Formula:

C₂H₃N₃

Molecular Weight:

69.07

Specification Sheet SDS
1-(2,4,6-Triisopropylbenzenesulfonyl)-1H-1,2,4-triazole

Synonym:

TPST

Catalog Number:

00932

CAS Number:

54230-60-3

MDL NO:

MFCD00014089

Molecular Formula:

C₁₇H₂₅N₃O₂S

Molecular Weight:

335.5

SDS
2-Hydroxypyridine-N-oxide

Purity:

≥ 99% (HPLC)

Synonym:

1-Hydroxy-2(1H)pyridinone

Catalog Number:

00785

Purity Limit:

≥ 99% (HPLC)

CAS Number:

13161-30-3

MDL NO:

MFCD00006195

Molecular Formula:

C₅H₅NO₂

Molecular Weight:

111.1

Specification Sheet SDS
2,4,6-Triisopropylbenzenesulfonyl chloride

Hazmat

Purity:

≥ 99% (Titration)

Synonym:

Trisyl chloride

Hazmat

Catalog Number:

00923

Purity Limit:

≥ 99% (Titration)

CAS Number:

6553-96-4

MDL NO:

MFCD00007433

Molecular Formula:

C₁₅H₂₃SO₂Cl

Molecular Weight:

302.9

Specification Sheet SDS
1-(2,4,6-Triisopropylbenzenesulfonyl)imidazole

Purity:

≥ 99% (HPLC)

Synonym:

1-(2,4,6-Triisopropylphenylsulfonyl)imidazole

Catalog Number:

00928

Purity Limit:

≥ 99% (HPLC)

CAS Number:

50257-40-4

MDL NO:

MFCD00005283

Molecular Formula:

C₁₈H₂₆N₂O₂S

Molecular Weight:

334.4

Specification Sheet SDS
Benzotriazol-1-yl-oxy-tris(dimethylamino)phosphonium hexafluorophosphate

Hazmat

Purity:

≥ 99% (HPLC)

Synonym:

BOP

Hazmat

Catalog Number:

00604

Purity Limit:

≥ 99% (HPLC)

CAS Number:

56602-33-6

MDL NO:

MFCD00011948

Molecular Formula:

C₁₂H₂₂F₆N₆OP₂

Molecular Weight:

442.5

Specification Sheet SDS
Pentafluorophenol

Purity:

≥ 99.5% (GC)

Synonym:

2,3,4,5,6-Pentafluorophenol

Catalog Number:

00536

Purity Limit:

≥ 99.5% (GC)

CAS Number:

771-61-9

MDL NO:

MFCD00002156

Molecular Formula:

C₆HF₅O

Molecular Weight:

184.06

Specification Sheet SDS
4-Dimethylaminopyridine

Hazmat

Purity:

≥ 99% (Assay)

Synonym:

DMAP

Hazmat

Catalog Number:

00120

Purity Limit:

≥ 99% (Assay)

CAS Number:

1122-58-3

MDL NO:

MFCD00006418

Molecular Formula:

C₇H₁₀N₂

Molecular Weight:

122.17

Specification Sheet SDS

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