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Pyridine sulfur trioxide

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Origin: China

Cas No: 26412-87-3

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.:: 26412-87-3

Other Names:: Pyridine sulfur trioxide

MF:: C5H5N.O3S

EINECS No.:: 247-683-3

Place of Origin:: China

Type:: Agrochemical Intermediates, Dyestuff Intermediates, Flavor & Fragrance Intermediates, Pharmaceutical Intermediates, Syntheses Material Intermediates

Purity:: 99.0%

Brand Name:: HY

Model Number:: HY--14157

Application:: Pharm Intermediates

Appearance:: White Powder

Packaging&Delivery

Port: SHANGHAI TIANJIN YANTAI DALIAN

Lead Time:

Quantity(Kilograms)	1 - 1000	>1000
Est. Time(days)	7	To be negotiated

Products Description

item	value
CAS No.	26412-87-3
Other Names	Pyridine sulfur trioxide
MF	C5H5N.O3S
EINECS No.	247-683-3
Place of Origin	China
Type	Agrochemical Intermediates, Dyestuff Intermediates, Flavor & Fragrance Intermediates, Pharmaceutical Intermediates, Syntheses Material Intermediates
Purity	99.0%
Brand Name	HY
Model Number	HY--14157
Application	Pharm Intermediates
Appearance	White Powder

Property

CAS No.: 26412-87-3 Formula: C5H5NO3S Molecular Weight: 159.16300

Description

Sulfur trioxide pyridine complex is the compound with the formula C5H5NSO3. It is a colourless solid that dissolves in polar organic solvents. It is the adduct formed from the Lewis base pyridine and the Lewis acid sulfur trioxide. The compound is mainly used as a source of sulfur trioxide, for example in the synthesis of sulfate esters from alcohols:
ROH + C5H5NSO3 → [C5H5NH]+[ROSO3]−
It is also an activating electrophile in a Parikh-Doering oxidation.

Basic Info

Chemical Name	Pyridine sulfur trioxide
Synonyms	Active Sulfure Trioxide; sulfur trioxide pyridine; sulfur(VI) oxide-pyridine complex; (DIMETHYLAMINOMETHYL)STYRENE; sulfur trioride-pyridine; Sulfur trioxide pyridine complex; PyridineSO3; N,N-DIMETHYLVINYLBENZYLAMINE; Sulfur Trioxide - Pyridine Complex; SO3*pyridine complex; sulfur trioxide-pyridine complex; pyridine/sulfur trioxide complex; VINYLBENZYLDIMETHYLAMINE; Pyridine - Sulfur Trioxide Complex; Sulfur trioxide pyri;
CAS No.	26412-87-3
Molecular Formula	C5H5NO3S
Molecular Weight	159.16300
PSA	96.19000
LogP	1.37340

Properties

Appearance & Physical State	White to beige powder.
Boiling Point	115.3ºC at 760 mmHg
Melting Point	155ºC
Flash Point	20ºC
Water Solubility	reacts
Stability	Stable under normal temperatures and pressures.
Storage Condition	Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from water.
Vapor Pressure	22.8mmHg at 25°C

Safety Info

Hazard Class	8
Safety Statements	26-36/37/39-45
HS Code	29420000
Packing Group	II
WGK Germany	3
RIDADR	UN 3261
Risk Statements	R22; R34
Hazard Codes	C
Caution Statement	P280; P305 + P351 + P338; P310
Symbol	GHS05, GHS07
Signal Word	Danger
Hazard Declaration	H302; H314