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74839-19-3

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74839-19-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74839-19-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,3 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 74839-19:
(7*7)+(6*4)+(5*8)+(4*3)+(3*9)+(2*1)+(1*9)=163
163 % 10 = 3
So 74839-19-3 is a valid CAS Registry Number.

74839-19-3Downstream Products

74839-19-3Relevant articles and documents

Synthetic and Biosynthetic Studies of Porphyrins. Part 9. Synthesis of Isocoproporphyrin, Dehydroisocoproporphyrin, and De-ethylisocopropophyrin

Jackson, Anthony H.,Lash, Timothy D.,Ryder, David J.

, p. 287 - 298 (2007/10/02)

The title compounds, which were extracted by patients suffering from porphyria cutanea tarda or rats poisoned with hexachlorobenzene have been synthesized by the b-oxobilane route.Isocoproporphyrin tetramethyl ester (7a) were prepared from pyrromethanes c

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