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USA Office
SINCO PHARMACHEM INC.
364 E Main Street Suite 1004 Middletown, DE 19709
Tel：+01 (302) 314 9524
sales@sincopharmachem.com

Strategical Partner:
SHENZHEN PHYSTANDARD BIO-TECH CO., LTD.
3rd Floor D Block QingChuang City Pink Town MinKang Road 292, MinZhi Street, LongHua, ShenZhen, GuangDong, China 518131
Tel: +86 755 8178 9528 Email: info@phystandard.com
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Allopurinol

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Allopurinol

Allopurinol
CAT #: A20362
CAS #: 315-30-0
M.F .: C5H4N4O
M.W .: 136.11

Allopurinol Impurity 2
CAT #: A20363
CAS #: 2465-59-0
M.F .: C5H4N4O2
M.W .: 152.11

Allopurinol EP Impurity A
CAT #: A20364
CAS #: 5334-31-6
M.F .: C4H6N4O
M.W .: 126.12

Allopurinol EP Impurity B
CAT #: A20365
CAS #: 22407-20-1
M.F .: C5H6N4O2
M.W .: 154.13

Allopurinol EP Impurity C
CAT #: A20366
CAS #: 1346604-13-4
M.F .: C6H6N6O
M.W .: 178.15

Allopurinol EP Impurity D
CAT #: A20367
CAS #: 6994-25-8
M.F .: C6H9N3O2
M.W .: 155.16

Allopurinol EP Impurity E
CAT #: A20368
CAS #: 31055-19-3
M.F .: C7H9N3O3
M.W .: 183.17

Allopurinol Impurity F (Mixture of Z and E Isomers)
CAT #: A20369
CAS #: 321571-07-7
M.F .: C12H14N4O4
M.W .: 278.27

Oxypurinol -13C, 15N2
CAT #: A20370
CAS #: N/A
M.F .: C5H4N4O2
M.W .: 155.09

Allopurinol Impurity 1
CAT #: A15443
CAS #: 4862-18-4
M.F : C6H12N4O3
M.W : 188.19

Allopurinol-13C3-15N
CAT #: B60050
CAS #: NA
M.F : C213C3H4N315NO
M.W : 140.08

Allopurinol-13C3-15N3
CAT #: B60051
CAS #: NA
M.F : C213C3H4N15N3O
M.W : 142.07

Allopurinol EP Impurity A Hemisulphate
CAT #: A15799
CAS #: 27511-79-1
M.F : C4H6N4O 1/2H2O4S
M.W : 126.12 1/2 98.07

Allopurinol EP Impurity E HCl
CAT #: A15991
CAS #: 31055-19-3（free base）
M.F : C7H9N3O3 HCl
M.W : 183.17 36.46

Allopurinol EP Impurity C HCl
CAT #: A18422
CAS #: 1346604-13-4(free base)
M.F : C6H6N6O HCl
M.W : 178.16 36.46

Allopurinol EP Impurity B HCl
CAT #: A18533
CAS #: 22407-20-1(free base)
M.F : C5H6N4O2 HCl
M.W : 154.13 36.46