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9-BBN DIMER

9-BBN DIMER structure

CAS No.: 21205-91-4

Chemical Name:: 9-BBN DIMER

Synonyms: 9-BORABICYCLO[3.3.1]NONANE DIMER;9-BBN DIMER;9-BBN,Dimmer;9BBN0.5MinTHF;9-BBN dimer, 97%;9-BBN dimer, 97% (Gms);9-BBN CRYSTALLINE DIMER;9-BBN,0.5MsolutioninTHF;9-BBN dimer,98%,crystalline;9-BBN DIMER, CRYSTALLINE, 98%

CBNumber:: CB4155805

Molecular Formula:: C16H30B2

Molecular Weight:: 244.04

MDL Number:: MFCD00168069

MOL File:: 21205-91-4.mol

Last updated:2026-01-13 11:18:58

Product description	Number	Pack Size	Price
9-Borabicyclo[3.3.1]nonane dimer	178713	5g	$118
9-Borabicyclo[3.3.1]nonane dimer	178713	25g	$378
9-Borabicyclo[3.3.1]nonane dimer	178713	100g	$1040
9-BBNDimer(TechnicalGrade)	B119150	1g	$50
9-BBN DIMER 95.00%	CHM0013378	25G	$1408.01
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9-BBN DIMER Properties

Melting point	150-152 °C(lit.)
Boiling point	365.8±48.0 °C(Predicted)
storage temp.	2-8°C
solubility	Soluble in tetrahydrofuran, ether, hexane, benzene, toluene, carbon tetrachloride, chloroform, dichloromethane and dimethylsulfide. Slightly soluble in cyclohexane, dimethoxyethane, diglyme and dioxane.
form	crystalline
Sensitive	Air & Moisture Sensitive
BRN	605509
Stability	Hygroscopic, Moisture Sensitive
InChI	InChI=1S/C16H30B2/c1-5-13-7-2-8-14(6-1)17(13)19-18(20-17)15-9-3-10-16(18)12-4-11-15/h13-16H,1-12H2
InChIKey	IYDIZBOKVLHCQZ-GEEKYZPCSA-N
SMILES	B12([H]B3(C4CCCC3CCC4)[H]1)C1CCCC2CCC1
UNSPSC Code	12352005
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02,GHS07

Signal word

Danger

Hazard statements

H228-H261-H315-H319-H335

Precautionary statements

P210-P231+P232-P261-P305+P351+P338-P422

PPE

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

Hazard Codes

F,Xi

Risk Statements

11-14/15-36/37/38

Safety Statements

26-43

RIDADR

UN 3396 4.3/PG 2

WGK Germany

10-16

HazardClass

4.2

PackingGroup

HS Code

29349990

Storage Class

4.3 - Hazardous materials which set free flammable gases upon contact with water

Hazard Classifications

Eye Irrit. 2
Flam. Sol. 1
Skin Irrit. 2
STOT SE 3
Water-react 2

Limited Quantities

0.5 Kg (1.1 lbs) (solid)

Excepted Quantities

Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)

NFPA 704

	2
1		0

9-BBN DIMER price More Price(9)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	178713	9-Borabicyclo[3.3.1]nonane dimer	21205-91-4	5g	$118	2025-07-31	Buy
Sigma-Aldrich	178713	9-Borabicyclo[3.3.1]nonane dimer	21205-91-4	25g	$378	2025-07-31	Buy
Sigma-Aldrich	178713	9-Borabicyclo[3.3.1]nonane dimer	21205-91-4	100g	$1040	2025-07-31	Buy
TRC	B119150	9-BBNDimer(TechnicalGrade)	21205-91-4	1g	$50	2021-12-16	Buy
American Custom Chemicals Corporation	CHM0013378	9-BBN DIMER 95.00%	21205-91-4	25G	$1408.01	2021-12-16	Buy

Product number	Packaging	Price	Buy
178713	5g	$118	Buy
178713	25g	$378	Buy
178713	100g	$1040	Buy
B119150	1g	$50	Buy
CHM0013378	25G	$1408.01	Buy

9-BBN DIMER Chemical Properties,Uses,Production

Chemical Properties

white crystals or crystalline powder

Uses

Employed in the hydroboration of alkynes, nitriles, and ketones.

reaction suitability

reagent type: reductant

Purification Methods

It is available as the solid dimer or in tetrahydrofuran solution. The solid is relatively stable and can be purified by distillation in a vacuum (as dimer) and by recrystallisation from tetrahydrofuran (solubility at room temperature is 9.5%, 0.78M), filter off the solid under N2, wash it with dry pentane and dry it in vacuo at ca 100o. The solid is a dimer (IR 1567cm-1), stable in air (for ca 2 months), and can be heated for 24hours at 200o in an inert atmosphere without loss of hydride activity. It is a dimer in tetrahydrofuran solution also (IR 1567cm-1). It is sensitive to H2O and air (O2) in solution. Its concentration in solution can be determined by reaction with MeOH and measuring the volume of H2 liberated, or it can be oxidised to cis-cyclooctane-1,5-diol (m 73.5-74.5o). [IR: Knights & Brown J Am Chem Soc 90 5280 1968, Brown et al. J Am Chem Soc 96 7765 1974, Brown et al. J Org Chem 41 1778 1976, Brown & Chen J Org Chem 46 3978 1981, Fieser & Fieser Reagents for Org Synth 2 31, 3 24, 10 48, 15 43, 17, 49.] Borane pyridine complex [110 -51 -0] M 92.9, m 8-10o, 10-11o, b 86o/7mm, 100-1 0 1o/12mm, d 4 0.785. Dissolve it in Et2O and wash it with H2O in which it is insoluble. Evaporate the Et2O and distil the residual oil to gives better than 99.8% purity. Its vapour pressure is less than 0.1mm at room temperature. [Taylor et al. J Am Chem Soc 77 1506 1955, Beilstein 20 IV 2235.]

9-BBN DIMER synthesis

Synthesis of 9-BBN DIMER from Borane-tetrahydrofuran complex

9-BBN DIMER Preparation Products And Raw materials

Raw materials

tetraethyldiborane TRIS(PENTAFLUOROPHENYL)BORANE 9-METHOXY-9-BORABICYCLO[3.3.1]NONANE Borane-tetrahydrofuran complex Tetrahydrofuran

Diethyl ether Diborane Borane-methyl sulfide complex Titanium tetrachloride Hydrogen

Triethylborane

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Preparation Products

9-BBN TRIFLATE

9-BBN DIMER Suppliers

Global( 129)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Shanghai Time Chemicals CO., Ltd.	+86-021-57951555 +8617317452075	jack.li@time-chemicals.com	China	1803	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29831	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49977	58
SIMAGCHEM CORP	+86-5922680277 +86-13806087780	sale@simagchem.com	China	17346	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
Shanghai UCHEM Inc.	+862156762820 +86-13564624040	sales@myuchem.com	China	8731	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52846	58
Henan Alfa Chemical Co., Ltd	+8615838112936	sale03@alfachem.cn	China	12830	58
HANGZHOU LEAP CHEM CO., LTD.	+86-571-87711850	market18@leapchem.com	China	24597	58
Coresyn Pharmatech Co., Ltd.	+86-571-86626709 +86-18157142896	cbc@coresyn.com	China	9984	58

Supplier	Advantage
Shanghai Time Chemicals CO., Ltd.	55
career henan chemical co	58
CONIER CHEM AND PHARMA LIMITED	58
SIMAGCHEM CORP	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
Shanghai UCHEM Inc.	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
Henan Alfa Chemical Co., Ltd	58
HANGZHOU LEAP CHEM CO., LTD.	58
Coresyn Pharmatech Co., Ltd.	58

View Lastest Price from 9-BBN DIMER manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2019-07-06	9-BBN DIMER 21205-91-4	US $1.00 / kg	1kg	98%min	C16H28B2	Career Henan Chemical Co

9-BBN DIMER
21205-91-4
US $1.00 / kg
98%min
Career Henan Chemical Co

9-BBN DIMER Spectrum

9-BBN DIMER(21205-91-4)Raman

21205-91-4(9-BBN DIMER)Related Search:

B-Benzyl-9-borabicyclo[3.3.1]nonane B-ISOPINOCAMPHEYL-9-BORABICYCLO[3.3.1]NONANE Diborane 9-Borabicyclo[3.3.1]nonane 9-BBN DIMER

9-BROMO-9-BORABICYCLO[3.3.1]NONANE,9-Bromo-9-borabicyclo[3.3.1]nonane solution,B-Bromo-9-borabicyclo[3.3.1]nonane Lithium 9-borabicyclo[3.3.1]nonane hydride 9-(1,1,2-Trimethylpropoxy)-9-borabicyclo[3.3.1]nonane 9-Borabicyclo[3.3.1]nonane,9-methoxy (R)-B-isopinocampheyl-9-borabicyclo[3.3.1]nonane,b-isopinocampheyl-9-borabicyclo[3.3.1]nonane solution,B-ISOPINOCAMPHEYL-9-BORABICYCLO[3.3.1]NONANE

Boron 9-iodo-9-borabicyclo[3.3.1]nonane solution,9-IODO-9-BORABICYCLO[3.3.1]NONANE 9-BORABICYCLO[3.3.1]NONANE 9-Cyclohexyl-9-borabicyclo[3.3.1]nonane 9-butyl-9-borabicyclo[3.3.1]nonane

9-[(E)-3-(Trimethylsilyl)-4-methyl-2-pentenyl]-9-borabicyclo[3.3.1]nonane 9-[(E)-3,4-Bis(trimethylsilyl)-2-butenyl]-9-borabicyclo[3.3.1]nonane 9-(4-Hexenyl)-9-borabicyclo[3.3.1]nonane

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9-BBN dimer,98%,crystalline 9-BBN,0.5MsolutioninTHF 9-Borabicyclo[3.3.1]nonane dimer,9-BBN Diborane(6),1,1:2,2-bis(1,5-cyclooctanediyl)- Bis-9-borabicyclo[3.3.1]nonane 9-BBN DIMER, CRYSTALLINE, 98% 9-BBN,Dimmer 9-BBN CRYSTALLINE DIMER 9-BORABICYCLO[3.3.1]NONANE DIMER 9-BBN DIMER 9-BORABICYCLO[3.3.1]NONANE,9-BORABICYCLO[3.3.1]NONANE DIMER DICYCLO[3,3,1]9-BORON OCTYL POLYMER 9-BBN Dimer (Technical Grade) 9-BBN Triflate Solution (0.5M in hexanes) pure 9-Borabicyclo[3.3.1]nonane dimmer 9- Borobicyclo [3.3.1] nonane dimer Lithium dodecahydro-closo-dodecaborate 9-BBN dimer, 97% (Gms) 9-(9-borabicyclo[3.3.1]nonan-9-yl)-9-borabicyclo[3.3.1]nonane 9BBN0.5MinTHF 9-BBN dimer, 97% 9-Borabicyclo[3.3.1]nonane dimer solution 0.5M 21205-91-4 C16H30B2 C16H28B2 Boranes Synthetic Reagents Reduction Reduction Synthetic Organic Chemistry