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1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate

CAS No.
56602-33-6
Chemical Name:
1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate
Synonyms
BOP;BOP REAGENT;BENZOTRIAZOL-1-YLOXYTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE;1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate [Coupling Reagent for Peptide];cas:56602-33-6;BENZOTRIAZOLYL-N-OXYTRIS-(DIMETHYLAMINO-PHOSPHONIUM HEXAFLUOROPHOSPHATE);BOP-reaagent;CASTROS REAGENT;CASTRO'S REAGENT;BOP Reagent(BOP)
CBNumber:
CB9434718
Molecular Formula:
C12H22F6N6OP2
Molecular Weight:
442.29
MDL Number:
MFCD00011948
MOL File:
56602-33-6.mol
MSDS File:
SDS
Last updated:2026-01-13 11:27:03
Product description Number Pack Size Price
BOP Benzotriazole-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate Novabiochem? 8.51004 25g $111
BOP Benzotriazole-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate Novabiochem? 8.51004 100g $341
(Benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 97% 226084 1g $63.5
(Benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 97% 226084 5g $99.3
1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate [Coupling Reagent for Peptide] >98.0%(HPLC) B1651 5g $42
More product size

1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate Properties

Melting point >130 °C (dec.)(lit.)
Flash point 138°C
storage temp. 2-8°C
solubility methanol: 25 mg/mL, clear
form Powder
color White to off-white
Water Solubility Soluble in methanol, acetone and dichloromethane. Insoluble in water.
Sensitive Moisture & Light Sensitive
Decomposition 138 ºC
BRN 4287025
Major Application peptide synthesis
InChI InChI=1S/C12H22N6OP.F6P/c1-15(2)20(16(3)4,17(5)6)19-18-12-10-8-7-9-11(12)13-14-18;1-7(2,3,4,5)6/h7-10H,1-6H3;/q+1;-1
InChIKey MGEVGECQZUIPSV-UHFFFAOYSA-N
SMILES [P+5]([F-])([F-])([F-])([F-])([F-])[F-].[P+](N(C)C)(N(C)C)(N(C)C)ON1N=NC2C=CC=CC1=2
CAS DataBase Reference 56602-33-6(CAS DataBase Reference)
UNSPSC Code 12352107
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS02,GHS07
Signal word  Danger
Hazard statements  H228-H315-H335
Precautionary statements  P210-P240-P241-P261-P264-P302+P352
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi,E,F
Risk Statements  37/38-44-36/37/38-11-2
Safety Statements  24/25-37/39-36-26-35-36/37/39
RIDADR  UN 1325 4.1/PG 2
WGK Germany  3
8-10-21
Hazard Note  Irritant
HazardClass  4.1
PackingGroup 
HS Code  29339980
Storage Class 4.1A - Other explosive hazardous materials
Hazard Classifications Flam. Sol. 1
Skin Irrit. 2
STOT SE 3
Limited Quantities 1.0 Kg (2.2 lbs)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
NFPA 704
2
2 1

1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate price More Price(47)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.51004 BOP Benzotriazole-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate Novabiochem? 56602-33-6 25g $111 2026-03-19 Buy
Sigma-Aldrich 8.51004 BOP Benzotriazole-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate Novabiochem? 56602-33-6 100g $341 2026-03-19 Buy
Sigma-Aldrich 226084 (Benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 97% 56602-33-6 1g $63.5 2026-03-19 Buy
Sigma-Aldrich 226084 (Benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 97% 56602-33-6 5g $99.3 2026-03-19 Buy
TCI Chemical B1651 1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate [Coupling Reagent for Peptide] >98.0%(HPLC) 56602-33-6 5g $42 2026-03-19 Buy
Product number Packaging Price Buy
8.51004 25g $111 Buy
8.51004 100g $341 Buy
226084 1g $63.5 Buy
226084 5g $99.3 Buy
B1651 5g $42 Buy

1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate Chemical Properties,Uses,Production

Chemical Properties

white to off-white powder

Uses

Peptide coupling reagent which suppresses racemization.

Uses

1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate is a peptide coupling reagent. Can be used in the preparation of phenyl esters of amino acids which have been shown to be valuable as blocked derivatives of amino acids in the field of peptide synthesis.

Uses

1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate is used as a reagent for peptide coupling, lactonization, selective esterification, amidation of alfa amino acids without racemization and synthesis of magnolamide for antioxidative activity and catalyst for 9-acridinecaroboxamide derivative. It is also used as a precursor for the synthesis of phenyl esters of amino acids. It acts as a substitute for (Benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate (BOP) reagent.

Preparation

To vigorously stirred HMPA (15.0 g, 83.7 mmol) at 0 C°, a solution of triphosgene (11.28 g, 38.01 mmol) in dichloromethane (15 mL) was added over a period of 40 min. The ice bath was then removed and the mixture was stirred at room temperature. At various intervals, small aliquots were removed in order to follow the disappearance of the HMPA spectroscopically. After 3 h, the solvent was removed under reduced pressure to leave a residue. This residue was redissolved in dry dichloromethane (40 mL) and solid hydroxybenzotriazole monohydrate (12.76 g, 94.4 mmol) was added with stirring. The resulting solution was cooled to about 5 C° with an acetone/ice bath, whereupon triethylamine (8.42 g, 83.4 mmol) was added over a period of 15 min and stirring was continued at -5 C for 4 h. The residue was dissolved in water (50 mL) and mixed with a filtered solution of potassium hexafluorophosphate (16.68 g, 90.6 mmol) in water (120 mL) to give benzotriazolyl-N-oxytris(dimethylamino)phosphonium hexafluorophosphate 1317 (BOP) as a crystalline solid (28.91 g, 78%).
Chloroformates 1319 and chlorides 1320 are also formed when secondary benzyl alcohols 1318 are treated with trichloromethyl chloroformate (diphosgene) in the presence of triethylamine. The distribution of products can be controlled.

Preparation of 1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate-1

Reactions of tetrahydropyranylated alcohols 1321 with N,N-dimethylphosgeniminium chloride (‘‘Viehe salt’’) 1322 give the corresponding alkyl chloride 1300 in good yields [997]. This conversion can be conveniently accomplished by adding the ‘‘Viehe salt’’ (1.05 equiv.) as a solid to a solution of the THP-protected alcohol (1 equiv.) in anhydrous dichloromethane (0.3 m) under argon at 0 C°. After completion of the reaction and aqueous work-up, the crude alkyl chlorides are purified by column chromatography.

Preparation of 1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate-2

reaction suitability

reaction type: Coupling Reactions

Purification Methods

Dissolve it in CH2Cl2, dry (MgSO4), filter, concentrate it under a vacuum, then add dry Et2O and filter off the first crop. Add CH2Cl2 to the filtrate and concentrate again to obtain a second crop. The solid is washed with dry Et2O and dried in a vacuum. Also recrystallise it from dry Me2CO/Et2O and check the purity by NMR. Store it in the dark. [Castro et al. Synthesis 751 1976, Nguyen et al J Chem Soc, Perkin Trans I 1915 1987, Coste et al. Tetrahedron Lett 36 4253 1995.]

1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate Preparation Products And Raw materials

Global( 459)Suppliers
Supplier Tel Email Country ProdList Advantage
Suzhou Highfine Biotech Co.,Ltd.
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Alchem Pharmtech,Inc.
8485655694 sales@alchempharmtech.com United States 63687 58

View Lastest Price from 1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
BOP hexafluorophosphate pictures 2026-04-22 BOP hexafluorophosphate
56602-33-6
US $0.00 / g 100g 98.0% 100kg/month WUHAN FORTUNA CHEMICAL CO., LTD
1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate pictures 2026-03-20 1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate
56602-33-6
US $10.00 / KG 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate pictures 2025-04-04 1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate
56602-33-6
US $0.00-0.00 / KG 1KG 98% 1ton Henan Aochuang Chemical Co.,Ltd.
(1-hydroxy-1h-benzotriazolato-o)tris(n-methylmethanaminato)-phosphorus(1++ benzotriazol-1-yl-oxytris(dimethylamino)phosphoniumhexa-fluorophosphate(bop) BOP, BENZOTRIAZO-1-YLOXY-TRIS[DIMETHYLAMINO]PHOSPHONIUM HEXAFLUOROPHOSPHATE BENZOTRIAZOL-1-YL-OXY-TRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE (BOP REAGENT) benzotriazol-1-yloxytris(dimethylamino)phosphonium PF6 BOP Reagent, BOP, Castros reagent Phosphorus(1+), (1-hydroxy-1H-benzotriazolato-O)tris(N-methylmethanaminato)-, (T-4)-, hexafluorophosphate(1-) Benzotriazol-1-yl-oxy-tris(dimethylamino)phosphonium hexafluorop BENZOTRIAZOLYL-N-OXY-TRIS(DIMETHYL-AMINO )PHOSPHONI Benzotriazole-1-yl-o BOP, Castros Reagent (1H-Benzo[d][1,2,3]triazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate(V) BENZOTRIAZOLE-1-YL-OXY-TRIS-DIMETHYLAMINOPHOPHONIUM BENZOTRIAZOLE-1-YL-OXY-TRIS-(DIMETHYLAMINO)-PHOSPHONIUM HEXAFLUOROPHOSPHATE BENZOTRIAZOLE-1-YL-OXY-TRIS-(DIMETHYLAMINO)-PHOSPHONIUM BENZOTRIAZOLE-1-YL-OXY-TRIS-(DIMETHYLAMINO)-PHOPHONIUM HEXAFLUOROPHOSPHATE CASTROS REAGENT CASTRO'S REAGENT HEXAFLUOROPHOSPHATE BOP BENZOTRIAZOL-1-YLOXYTRIS(DIMETHYLAMINO)- PHOSPHONIUM HEXAFLUOROPHOSPHATE, 97 BENZOTRIAZOLYL-N-OXY-TRIS(DIMETHYL-*AMINO)PHOSPHONIU BOP REAGENT:BENZOTRIAZOLE-1-YL-OXY-TRIS-(DIMETHYLAMINO)-PHOSPHONIUM HEXAFLUOROPHOSPHATE BOP [BENZOTRIAZOLE-1-YL-OXY-TRIS-(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE] Benzotriazol-1-yloxytris(dimethylamino)phosphonium Benzotriazol-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorphosphate(BOP) Benzotriazol-1-yloxytris(dimethylamino)-phosphonium hexafluorophosphate, 98+% BOP BENZOTRIAZOL-1-YLOXY)TRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE BOP reagent, 99% min. BENZOTRIAZOL-1-YL-OXY-TRIS-(DIMETHYLAMINO)-PHOSPHONIUM HEXAFLUORPHOSPHATE Tri(dimethylamino)benzotriazol-1-yloxyphosphonium hexafluorophosphate BOP(Benzotriazol-1-yl-tris(diMethylaMinophosphoniuM hexafluorophosphate) Six fluoride phosphate three benzotriazole - 1 - oxygen radicals (diMethyl aMine) phosphorus (56602-33-6) carter condensing agent 700 g Cartercondensation agent (Benzotriazol-1-yloxy)tris(diMethylaMino)phosphoniuM hexafluorophosphate 97% cas:56602-33-6 Phosphorus(1+), [1-(hydroxy-κO)-1H-benzotriazolato]tris(N-methylmethanaminato)-, (T-4)-, hexafluorophosphate(1-) Benzotriazol-1-yl-oxy-tris(dimethylamino)phosphonium hexafluorophosphate≥ 98% (HPLC) BOP Benzotriazole-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate Novabiochem BOP hexafluorophosphate BENZOTRIAZOLYL-N-OXYTRIS-(DIMET BOP-reaagent Benzotriazol-1-yloxytris(dimethylamino)-phosphonium hexafluorophosp BOP Reagent(BOP) 1H-BENZOTRIAZOL-1-YLOXYTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE 1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate [Coupling Reagent for Peptide]> Benzotriazol-1-yloxytris(dimethylamino)-phosphonium hexafluorophosphate, 98%, for synthesis BOP Benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate,98% Benzotriazol-1-yloxyphosphonium hexafluorophosphate Benzotriazole -1- oxytris (dimethylamino) - hexafluorophosphoric acid PHOSPH 1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate USP/EP/BP tri(dimethylamino)benzotriazol-1-yloxyphosphonium hexafluoro... BOP(CAS# 56602-33-6) BOP Reagent extrapure AR, 98% benzotriazol-1-yloxy-tris(dimethylamino)phosphanium Benzotriazol-1-yloxytri (dimethylamino) phosphonium hexafluorophosphate BOP Reagent, 95% Carter's reagent 1H-Benzotriazol-1-yloxytris(dimethylamino)phosphonium Hexafluorophosphate [Coupling Reagent for Peptide]