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1238507-98-6

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1238507-98-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1238507-98-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,5,0 and 7 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1238507-98:
(9*1)+(8*2)+(7*3)+(6*8)+(5*5)+(4*0)+(3*7)+(2*9)+(1*8)=166
166 % 10 = 6
So 1238507-98-6 is a valid CAS Registry Number.

1238507-98-6Downstream Products

1238507-98-6Relevant articles and documents

An expeditious, efficient green methodology for the Boc protection of amines and silyl protection of alcohols over tungstophosphoric acid-doped mesoporous silica

Karmakar, Bikash,Banerji, Julie

, p. 3855 - 3858 (2010)

An efficient, chemoselective and eco-friendly protocol for the protection of amines as N-tert-butylcarbamate using (Boc)2O and protection of alcohols as silyl ether using HMDS over tungstophosphoric acid/SBA15 has been developed. Solventless condition, easy work-up, short reaction time, excellent yields and reusability of the catalyst are the striking features of this methodology which can be considered to be one of the better methods for the protection of amines and alcohols.

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