Cas 1321605-14-4,(20R)-5β-pregnan-3α,20-diyl 3-acetate 20-tosylate

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Check Digit Verification of cas no

The CAS Registry Mumber 1321605-14-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,2,1,6,0 and 5 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1321605-14:
(9*1)+(8*3)+(7*2)+(6*1)+(5*6)+(4*0)+(3*5)+(2*1)+(1*4)=104
104 % 10 = 4
So 1321605-14-4 is a valid CAS Registry Number.

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1321605-14-4Relevant articles and documents

Azido analogs of neuroactive steroids

Vidrna, Lukáǎ,?erny, Ivan,Pouzar, Vladimír,Borovská, Ji?ina,Vyklicky, Vojtěch,Vyklicky Jr., Ladislav,Chodounská, Hana

experimental part, p. 1043 - 1050 (2011/08/22)

Analogs of pregnanolone (3α-hydroxy-5β-pregnan-20-one), modified in position 17 were prepared. Compounds with 20-keto pregnane side chain replaced completely by azide (17α- and 17β-azido-5β-androstan- 3α-ol), compounds with its part replaced (20-azido-21-

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1321605-14-4