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6000-17-5

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6000-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6000-17-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,0,0 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 6000-17:
(6*6)+(5*0)+(4*0)+(3*0)+(2*1)+(1*7)=45
45 % 10 = 5
So 6000-17-5 is a valid CAS Registry Number.

6000-17-5Downstream Products

6000-17-5Relevant articles and documents

Total synthesis of 3-hydroxy-6-oxaestra-1,3,5(10)-trien-17-one

Cao, Zhisong,Liehr, Joachim G.

, p. 841 - 844 (1996)

The modified steroid estrogen, 3-hydroxy-6-oxaestra-1,3,5(10)-trien-17-one, i.e. 6-oxaestrone 8 has been prepared from 7-methoxychromanone 1 by de novo synthesis of the modified steroid ring system. The 1H and 13C NMR data for the intermediate products 3, 4, 4a, 4b, 4c, 6, 7, and for the final product 8 support the proposed structures. A mechanism for the ring-closure reaction of 3 to intermediate products 4 and 4a is proposed.

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