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99070-70-9

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99070-70-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99070-70-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,0,7 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 99070-70:
(7*9)+(6*9)+(5*0)+(4*7)+(3*0)+(2*7)+(1*0)=159
159 % 10 = 9
So 99070-70-9 is a valid CAS Registry Number.

99070-70-9Relevant articles and documents

Blue LED-Promoted Oxathiacetalization of Aldehydes and Ketones

Liu, You-Chen,Reddy, Daggula Mallikarjuna,Chen, Xin-An,Shieh, Yi-Chen,Lee, Chin-Fa

, p. 2542 - 2552 (2020/04/27)

In synthetic chemistry, the protection of aldehydes and ketones is crucial during multistep synthesis of complex molecules. Organic chemists have paid substantial attention to the synthesis of 1,3-oxathiolanes and 1,3-oxathianes because of their considera

Silica-gel supported sulfamic acid (SA/SiO2) as an efficient and reusable catalyst for conversion of ketones into oxathioacetals and dithioacetals

Aoyama, Tadashi,Suzuki, Toshihiko,Nagaoka, Takashi,Takido, Toshio,Kodomari, Mitsuo

, p. 553 - 566 (2013/01/15)

A simple and efficient method for the conversion of carbonyl compounds to oxathioacetals and dithioacetals using SA/SiO2 as an acid catalyst has been achieved. SA/SiO2 is easily recovered from the reaction mixture and can be reused at least 15 times without loss of catalytic activity.

Deprotection of 1,3-oxathiolanes to carbonyl compounds with montmorillonite K10

Chauhan,Kumar, Anil,Sahoo

, p. 2635 - 2637 (2007/10/03)

Montmorillonite K10 has been used in the deprotection of different aromatic and aliphatic 1,3-oxathiolanes to the corresponding carbonyl compounds in 73 to 97% yields under mild and environmentally compatible conditions.

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