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Cas No: 89797-68-2
USD $ 10.0-20.0 / Kilogram 1 Kilogram 500 Kilogram/Week Hebei Nengqian Chemical Import and Export Co., LTD Contact Supplier
Cas No: 89797-68-2
No Data 1 Kilogram 3 Metric Ton/Month Chemsigma International Co.,Ltd. Contact Supplier
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No Data 1 Kilogram 100 Metric Ton/Month Wuhan PharmChem Co.,Ltd Contact Supplier
5-(Ethylthio)-1H-tetrazole Manufacturer/High quality/Best price/In stock
Cas No: 89797-68-2
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Dayang Chem (Hangzhou) Co.,Ltd. Contact Supplier
High quality 5-(Ethylthio)-1H-Tetrazole supplier in China
Cas No: 89797-68-2
No Data 1 Metric Ton 30 Metric Ton/Month Simagchem Corporation Contact Supplier
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No Data 1 Kilogram 20 Metric Ton/Month Henan Allgreen Chemical Co.,Ltd Contact Supplier
Factory Supply 5-(Ethylthio)-1H-Tetrazole
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TIANFUCHEM--89797-68-2--High purity 5-(Ethylthio)-1H-tetrazole factory price
Cas No: 89797-68-2
USD $ 2000.0-2000.0 / Metric Ton 1 Metric Ton 1000 Metric Ton/Day Henan Tianfu Chemical Co., Ltd. Contact Supplier
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USD $ 139.0-210.0 / Kilogram 1 Kilogram 1000 Kilogram/Day Zhuozhou Wenxi import and Export Co., Ltd Contact Supplier
BLOOM TECH Advanced API/Technology support 5-(Ethylthio)-1H-tetrazole CAS 89797-68-2
Cas No: 89797-68-2
No Data 1 Gram 3 Metric Ton/Month Shaanxi BLOOM TECH Co.,Ltd Contact Supplier

89797-68-2 Usage

Chemical Properties

White crystals


5-(Ethylthio)-1H-tetrazole is used a powerful activator in DNA and RNA syntheses.


5-(Ethylthio)-1H-Tetrazole is prepared from the corresponding alkyl thiocyanate and sodium azide through a [2?+?3] cycloaddition under phase transfer catalytic conditions (eq 1). The ratio of the solvent (water to toluene) as well as the reaction temperature are important factors in obtaining preparative yields of the alkylthiotetrazoles. 5-Ethylthio-1H-tetrazole has also been prepared using DMF as solvent albeit in much lower yield.

General Description

5-(Ethylthio)-1H-tetrazole (ETT) is an efficient activator, that activates nucleoside phosphoramidites towards condensation with a nucleoside to form dinucleoside phosphates during oligonucleotide synthesis.

Purification Methods

recrystallized from toluene.

Check Digit Verification of cas no

The CAS Registry Mumber 89797-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,9 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 89797-68:
222 % 10 = 2
So 89797-68-2 is a valid CAS Registry Number.

89797-68-2 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
TCI America (E0670)  5-(Ethylthio)-1H-tetrazole  >98.0%(HPLC)(T) 89797-68-2 1g 250.00CNY Detail
TCI America (E0670)  5-(Ethylthio)-1H-tetrazole  >98.0%(HPLC)(T) 89797-68-2 5g 790.00CNY Detail
Aldrich (493805)  5-(Ethylthio)-1H-tetrazole  95% 89797-68-2 493805-2G 672.75CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name 5-(Ethylthio)-1H-tetrazole

1.2 Other means of identification

Product number -
Other names S-ethyltetrazole

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:89797-68-2 SDS

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